P0446 pontiac grand prix. Evap vent valve is usually supplied Batt. P0446- I think this has to do with some circuit but I honesty don't know where to start. 2006 grand prix. Pontiac Grand Prix 2005 For 1990-2009 cars only Makes 馃 Pontiac 馃 2005 馃 Grand Prix 馃 DTC 馃 DTC P0446 Aug 7, 2018 路 A prevalent issue with the Pontiac G6 is the P0446 code. Car runs fine. Brian 2004 Pontiac Grand Prix P0128 Code: Coolant Thermostat Issue Grand Prix models often face thermostat failures and coolant temperature sensor malfunctions causing engine overheating. Jan 10, 2023 路 Code P0446, EVAP System? SBMISRY MEMBER 2003 PONTIAC GRAND AM 3. DTC P0451, P0452, P0453, or P0454. They said that my car gave back 2 codes: P0128 - Coolant Thermostat Below Thermostat Regulating Temperature P0446 - Evaporative emissions. Learn more Code P0446 indicates a malfunction in the EVAP system vent control circuit. It means a large leak has been detected. I have replaced the purge solenoid, vent valve, filler neck, fuel Oct 22, 2016 路 when I bought my 2005 GTP a short while ago I noticed that its very hard to fill up the gas tank. Customer: p0446 code replaces canister gas cap and purge valve still sets code off Mechanic's Assistant: Has the vehicle turned into a gas hog? And how does it start -- same as usual? Customer: 2008 pontiac grand prix 3. 2006 grand prix base. The most S10 is throughing. Jul 21, 2022 路 Repair Information for P0446 Pontiac code. Please help Thank you ken Now that we’ve had a quick review of how the system works, let’s begin our investigation into pulling codes. com http://1aau. Now I getting codes P1106,P0068,and P0446. its a 2002 grand prix and we thing that something is up with the computer sending the messgae to the white ground wire. What is a P0446 Code? Better yet, what the heck is a Evaporative Emission System Vent Control Circuit? Well I ran into this problem with my 2007 Chevrolet Tahoe with a 5. Hey Everyone, My 2004 Vibe has been giving me some EVAP error codes. 1L 6 CYL FWD AUTOMATIC 163,000 MILES EVAP code p0446. Pontiac Grand Prix 2008 For 1990-2009 cars only Apr 1, 2020 路 Shop for New Auto Parts at 1AAuto. No codes available. Also when accelerating when car shifts into 2nd the car will surge and drop back and forth sometimes. 07 Pontiac grand prix p0449 fixAudio tracks for some languages were automatically generated. Learn what Evaporative Emission Vent System Performance means, location and how to repair. Jul 4, 2011 路 I topped my 2000 gtp out at 124 mph and the service engine light came on, I ran the code and it said 'P0440 EVAP CONTROL SYSTEM MALFUNCTION' Subject: Evaporative Emissions DTC P0440, P0441, P0442, P0446 Models: 1996-2002 Passenger Cars and Trucks With Enhanced Evaporative Emissions Engines Except 1998-1999 Chevrolet Prizm 2006 Grand Prix 3. Pontiac Grand Prix 2004 For 1990-2009 cars only Makes 馃 Pontiac 馃 2004 馃 Grand Prix 馃 DTC 馃 DTC P0446 Sep 6, 2024 路 I have a 2002 Pontiac grand Prix gt sparks plugs was changed new battery an a oil change an a new Cadillac converter was put on but my car keeps misfiring an shuting off Feb 6, 2024 路 Are you getting a P0446 code from your Check Engine light? Don’t stress as it’s not too serious. The technician who is working on this vehicle has already Aug 14, 2018 路 Pontiac Grand Prix P0300 Meaning Worn plugs are a very common cause of P0300. P0446 EVAP Vent Problem. Since something is causing cylinders to misfire randomly, figuring out I have a 2005 GP. Numerous Nissan, Chevrolet, Toyota, Ford, and GMC models are most vulnerable to P0446 codes, but other vehicles are at risk. Nov 6, 2018 路 P0128 Causes: Pontiac Grand Prix Fixing P0128 in the Pontiac Grand Prix is usually a pretty easy thing to do since, 90% of the time, a stuck thermostat will cause the problem. Installation Spotlight presents: Helpful tips for replacing the Evaporative Emissions Purge Solenoid on a GM 3. In this video, DTC P0446. The P0128 code indicates the engine is not reaching optimal operating temperature, often due to a stuck-open thermostat. Feb 7, 2020 路 WHAT DOES THIS CODE MEAN P0446 FOR MY CAR 2005 Pontiac Grand Prix Cars & Trucks 8helpful 2answers The 2004-2005 Pontiac Grand Prix GTP is known to have issues with the EVAP system, a part of your emission control system. Full body conversion in works, drilled n slotted rotors, ceramics, all new suspension, custom CAI, NGK wires/Vpower plugs, SD headers, 180 Tstat, AND A WHOLE BUNCH OF PAINT BABY!! Tuned by E&J performance. MEMBER 2003 PONTIAC GRAND PRIX 3. Detailed repair manual for the 2006 Pontiac Grand Prix V6-3. They also mentioned that i might or might not lose engine performance DTC P0446. The control module commands the EVAP canister purge valve ON and the EVAP canister vent valve ON. #4 Re: P0446 code Scottydoggs Killa Bee Join Date Aug 2010 Location new jersey Posts 39,919 Thanks (Received) 63 Likes (Received) 166 Dislikes Aug 12, 2018 路 P0455 in the Pontiac Grand Prix is a trouble code that indicates your truck has a LARGE evaporative emissions leak. Wrenching With Kenny 112K subscribers Subscribed Customer: 2004 Grand Prix. If I give it more throttle it seems to come out of it. 8L throttle by wire. Thanks. How to fix a P0446 engine code: Evaporative Emission Control System Vent Control Circuit Malfunction A P0446 error code is set when the computer (ECM/PCM) reads an Got a pesky P0300 misfire code on your Pontiac Grand Prix? Don't fret! In this video, we'll walk you through the steps to diagnose and address the issue. I see on Craigs list there is a 1995 Grand Prix with a 3. It often appears with other codes, such Jan 25, 2017 路 P0446 Evaporative Emission Control System Vent Control Circuit Malfunction. Circuit/System Description The fuel tank pressure (FTP) sensor measures air pressure or vacuum in the evaporative emission (EVAP) system. We arent sure whats going on because we replaced the EVAP canister vent solenoid and replaced the gas cap as well. 8L SC VIN 1. This code corresponds to a specific number obtained when connecting your G6 to an OBDII scanner. 39 Pontiac Grand Prixs are reported accident free and 6 are One-Owner cars. This is a step by step how to guide on how to replace or fix the P0446 code on Advice & How-To's鈭旽ow-To P0446: Evaporative Emission Control System Vent Control Circuit Trouble code P0446 typically turns up in On-Board Diagnostic testing on account of an illuminated Check Engine Malfunction Indicator Lamp. Pontiac Grand Prix 2005 For 1990-2009 cars only Makes 馃 Pontiac 馃 2005 馃 Grand Prix 馃 DTC 馃 DTC P0446 We would like to show you a description here but the site won’t allow us. Fuel vapors are routed by hoses to a charcoal canister for storage. Im working on a 2001 pontiac grand prix that keeps setting code po446 evap code and my tech replaced the evap vent May 23, 2018 路 So I purchased a 2000 Grand Prix GTP 2-door today, and my reader is indicating P0446 & P0452 P0446 - Evaporative Emission Control System Vent Control Circuit Malfunction P0452 - Fuel Tank Pressure Sensor Circuit Low Voltage In my experience working with cars, it's only been the gas cap once Symptoms of P0101 Pontiac Check Engine Light: The most common symptom associated with a P0101 code is the illumination of the check engine light on the dashboard. The rear view mirror is getting Hello, I got a 06 Pontiac Grand Prix, having an intermittent problem with it wanting to start…. Learn about a failing EVAP system and the P0446 code. What Jan 7, 2023 路 What Does the P0446 Code Mean? Trouble code P0446 stands for an Evaporative Emission Control System (EVAP) Vent Control Circuit Malfunction. 8L V6. This can lead to increased emissions, reduced fuel efficiency, and potential damage to the engine over time. Aug 20, 2018 路 A very common issue with the Pontiac Grand Prix is the P0449 code. Code p0446. This is typically caused by a short in the wiring to or from Circuit/System Description The fuel tank pressure (FTP) sensor measures air pressure or vacuum in the evaporative emission (EVAP) system. 8L VIN 2. The most Sep 5, 2012 路 P0446 EVAP CONTROL SYSTEM VENT CONTROL MALFUNCTION CHECK ENGINLE LIGHT IS ON AND WILL NOT PASS EMISSIONS. May 22, 2025 路 The EVAP system prevents fuel fumes from leaking out and recycles it back to the engine. Jan 24, 2025 路 Short-term driving with Code P0446—Evaporative Emission Control System Vent Control Circuit Malfunction is okay. Shop for the best vapor canister for your 2008 pontiac grand prix, and you can place your order online and pick up for free at your local o'reilly. Auto pro experience-based service information for automotive professionals for February 2006. This code is usually triggered by a fault in one of the following components: Customer: my 2001 pontiac grand prix gt leaks fuel from the Canister Purge Solenoid vent valve, located next to where you add fuel to the vehicle. Evap purge system test will not run. to/c/240/A/evap-emission- EVAP Explained! It's one of the most common OBDII trouble codes, thanks to loose or P0446 Code Where In California Can I Pay To Have A Mechanic To Just Tell Me What Exact Part Needs To Be Replaced To Fix My P0446 Evap Code? I Will Do Asked by robinredd1 · 13 ANSWERS 35 IMAGES 2001 PONTIAC GRAND PRIX Customer: P0412,p0036,p0201,p0202,p0203,p0204,p0205,p0206;p0030,p0418,p0443,P0036 ; all codes on a 08 pontaic grand prix can u help me changed the throotle body and then all this occoured can u help me plz Apr 13, 2013 路 "The PCM has determined that a malfunction exists in the electrical circuit for the vent valve/solenoid in the evaporative emission control system. Recently, the check engine light came on. Rough Idling: The engine may idle roughly or even stall when the MAF sensor is not Discover more answers Pontiac Solstice GXP: I have a 2007 Solstice GXP. 73 Mar 26, 2024 路 Repair Information for P0300 Pontiac code. This code signals an evaporative emission system malfunction. Dec 3, 2017 路 2007 Grand Prix codes P1106, P0068, P0446 by Sai1997 » Sun Dec 03, 2017 1:09 pm My Grand Prix dies randomly while driving. Later, when the engine is running a purge When I turn a/c fan on in 1995 pontiac Grand Prix SE 3. . P0446 and p0r4 1999 Isuzu Trooper 3. Oct 30, 2018 路 I know there are a ton of P0446 threads on this forum but only a few hint at a resolution so I thought I'd write up how I finally fixed mine. Feb 15, 2011 路 P0446 - Evaporative Emmission Control System Vent Control Circuit Evap vent valve has only one purpose. System Description This DTC tests the evaporative emission (EVAP) system for a restricted or blocked EVAP vent path. 1 Answer Anonymous Re: Trying to find out p0446 on my Pontiac grand prix Type: OBD PO446 using google That is how you find obd codes You can ask the question any number of ways & get hundreds of results, on the internet Still have to smoke the evap system, to find out if the vent solenoid failed Posted on Apr 23, 2014 Helpful 0 Not Helpful P0446 code pontiac grand prix 2001, problem chek engi i change the Purge but stil. Check for any damage or corrosion to the solenoid, and if necessary, replace it with a new one. I do remember that it came on during a cool morning (45F). If your Grand Prix has this code, it indicates the EVAP purge control valve circuit is malfunctioning. C. I will tell you that filling it with gas is a major pain. Specifically P0441, P0442, and P0446. " Now this a very common problem and is often . Aug 7, 2018 路 Here are the most common things that are done to diagnose the code: Check the EVAP vent solenoid – This is the most common cause of P0446, so it’s a good place to start. This code appears when connecting the vehicle to an OBDII scanner and pertains to the emissions system. The code P0446 is set when the engine computer recognizes a fault or restriction at the vent control part of the Evaporative emission control system (EVAP). A faulty vent control valve most commonly causes P0446. A P0446 error code indicates an evaporative emission control system (EVAP) vent control circuit malfunction. 8L V6: Diagnosing P0300, P0446, and P0463 Codes Grand Prix often faces random misfires and evaporative system leaks causing check engine lights. The controller also uses this FTP signal to determine atmospheric pressure for use Discover how to diagnose and fix a P0446 Evaporative Emission Control System Vent Control Circuit Malfunction. Sep 12, 2024 路 When the system detects that the fuel tank is not properly sealed, it triggers the P0446 code, indicating a leak or malfunction in the system. And it all happen - Pontiac Cars & Trucks question Jan 25, 2017 路 How do you repair P0446 trouble code on a 2000 pontiac grand prix gtp? 2000 Pontiac Grand Prix 1answer Detailed repair manual for the 2006 Pontiac Grand Prix V6-3. Put in simpler terms, this code indicates that there’s a problem with the vent valve, the control circuit for that valve, or a blocked vent valve in the EVAP system. To correct the issue, the EVAP canister vent valve, solenoid, and wiring must be inspected. 1L with the aftermarket intake gaskets replaced; however, the body and interior is a little rough. Mechanic's Assistant: How many miles are on the Pontiac? Have any warning codes popped up? 78,000 Mechanic's Assistant: Are Dec 26, 2005 路 HEy all, my check engine light turned on so i called ONSTAR and did the diagnosis. We have 57 Pontiac Grand Prixs for sale with Free CARFAX Reports including GT, Base, GTP and other trims. The controller also uses this FTP signal to determine Dec 16, 2019 路 P0443 is a very common OBD2 code. the check engine light also came on with a P0446 Evap code. 4 with a "P0455 Large / Gross EVAP Leak. Also when accelerating when car shifts into 2nd the car wil … read more DTC P0446. 3. Fro NEED HELP ON A 04 PONTIAC GRAND PRIX 3. Here are the most common causes of P0128: Thermostat Stuck Open – Far and away, the most typical cause for the P0128 code is a thermostat that is stuck open. Check engine light is on, prompts code P0446, Customer: why is there a p0446 code on my 2001 pontiac grand prix gt? Answered by Ron Z. This trouble code references a number that is given to you when you plug your Firebird into a OBDII scanner. OBD2 code P0446 - in this video we replace the Vapor Canister Purge Valve Solenoid to correct code P0446 - EVAP Emission System Vent Control Circuit. Okay so im at my witts end with this problem. The powertrain control module (PCM) supplies a 5-volt reference circuit and a low reference circuit to the FTP sensor. why does it leak fuel from the valve everytime i add fuel to the vehicle? i replaced the valve twice. the pump will shut off after a few seconds. voltage with key on. Code also may refer to ECM detecting that EVAP system is unable to achieve or maintain vacuum during test. Pontiac Grand Prix 2008 For 1990-2009 cars only Jan 6, 2010 路 2000 PONT GRAND PRIX P0446 CODE NEW GAS CAP NO BROKEN VAC. The codes showed up maybe 6 months ago and… Let's have a look at this Chevrolet Cobalt that came with a code P0446 for the EVAP Vent Solenoid Performance. This generic OBD-II code indicates that the evaporative vent valve in the emission control system is malfunctioning. But what exactly is going wrong, and how can you fix it? If the ECM detects a short to ground, and open,or a short to battery voltage on the control circuit, P0446 Pontiac will set. 1 psi), ECT sensor from 68-230ºF, IAT sensor from 64-158ºF, MAF sensor from 2 DTC P0446. Simply put, the computer has detected an issue regarding the functionality of your Apr 28, 2019 路 One of the most common trouble codes with the Pontiac Firebird is the P0446 code. I have a 1998 Pontiac Grand Prix with 108,000 miles on it it was running fine for 2 weeks and then it throwed a P0300 code and then it throwed a P0446 code. Pontiac Grand Prix 2008 For 1990-2009 cars only This free video provides the steps to diagnose and clear a check engine light on a 2004 Pontiac Grand Prix GT1 3. Check engine light is on, prompts code P0446, I have a 2007 Solstice GXP. 8L V6 trouble code P0446 Code Where In California Can I Pay To Have A Mechanic To Just Tell Me What Exact Part Needs To Be Replaced To Fix My P0446 Evap Code? I Will Do Asked by robinredd1 · 13 ANSWERS 35 IMAGES 2001 PONTIAC GRAND PRIX EVAP vent solenoid code 2003 Grand AM GT- P0446. LINES UNDER THE HOOD AND DO NOT SEE A EVAP CAN - Pontiac 2000 Grand Prix question Detailed repair manual for the 2006 Pontiac Grand Prix V6-3. The EVAP canister vent valve or valve solenoid wiring may fail causing illumination of the check engine light, setting code P0446, and problems filling the tank with fuel. I can be going on interstate or just local driving. The vent control valve allows fresh air to enter the charcoal canister to purge the fuel vapors Feb 9, 2022 路 What Is the P0446 Code, and What Does It Mean? The P0446 fault code stands for Evaporative Emission Control (EVAP) system vent control circuit malfunction. When it through the P0446 code it was ru It keeps throwing out a P0449 code. Reduced Power and Acceleration: A faulty MAF sensor can cause the engine to lack power and struggle to accelerate, especially at higher speeds. 8 liter Mechanic's Assistant: Are you fixing your Grand Prix yourself? What have you tried so far? Customer: yes replaced all I stated Mechanic's Assistant: Anything else you Aug 4, 2018 路 One of the most common issues that happens with the Pontiac Grand Prix is the P0442 trouble code. 1 it will make a thud sound The day this started when I would climb a hill with the ac on, the fan would quit blowing than after leveling off start blowing again. Learn what triggers a code P0446, its symptoms, and how to fix it on your own. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. Information on diagnosing and repairing a vehicle DTC trouble code P0446 which is EVAP emission control system incorrect purge flow. 1L - bad engine - but pretty good body and interior. and have a look at this 2008 Pontiac Torrent 3. But repairs should happen soon to prevent more damage. Here are the most common problems that will throw the code. Start by inspecting the EVAP purge valve and vent solenoid for proper operation and electrical continuity. Pontiac Grand Prix 2008 For 1990-2009 cars only What does this mean? OBD2 Code P0441 Pontiac definition: This indicates that a part of the EVAP control system is no longer fuctioning correctly. IS THIS A - Pontiac 2001 Grand Prix question Sep 30, 2008 路 Code P0446 is on my 2001 pontiac grand prix what is this and how do i fix it? Posted by emtowens on Aug 22, 2010 DTC P0446. When I turn How do I replace the vapor canister on 2007 grand prix gxp? Grand Prix. 1 liter engine Level of difficulty: INTERMEDIATE Approximate installation time: 1/2 Oct 6, 2016 路 98 Grand prix SE to GTP conversion ( in works). 4L v6 The P0446 code indicates a malfunction in the Evaporative System Vent Control Circuit, which is responsible for capturing and purging fuel vapors back into t Oct 1, 2000 路 DTC P0446 Evaporative Emission (EVAP) Vent System Performance. The FTP sensor signal voltage varies depending on EVAP system pressure or vacuum. WHAT DOES THIS CODE MEAN P0446 FOR MY CAR - 2005 Pontiac Grand Prix Posted by DONNA HARRISON on Feb 07, 2014 How do I replace the vapor canister on 2007 grand prix gxp? Grand Prix. Table of Contents Definition Symptoms Causes Diagnosis How to Fix P0446 Definition P0446 is a standard OBDII trouble code, DTC P0446. And so far have replaced the gas cap, purge valve, Dec 16, 2005 路 DTC P0446 Evaporative Emission (EVAP) Vent System Performance Refer to EVAP Control System Overview . 4L V6 2WD AUTOMATIC 225,575 MILES Sep 17, 2011 路 DTC P0101-P0103, P0107, P0108, P0121-P0123, P0130-P0138, P0140, P0141, P0201-P0206, P0300, P0401-P0405, P0410, P0440-P0446, P0506, P0507, P1404 or P1441 not set, engine started, vehicle driven at less than 82 mph at 550-4000 rpm, BARO sensor more than 70 kPa (10. This system is responsible for capturing and storing fuel vapors to prevent them from being released into the atmosphere. Can anyone give me suggestions on dropping the fuel tank? I have a p0446 and want to check the charcoal canister but I won't be able to get the canister off without dropping the tank it seems like. Sep 19, 2016 路 Ok so my dad owns a 04 Grand Prix GTP with about 160K. This code means that the car’s computer detected trouble with the EVAP system vent valve’s function. fist it is hard to get fuel into tank seems like it is not venting,Code P0446 comes up on code reader. I change fuel pump,changed cam and crank sensors. 5L V-6 code P0446, evaporative vent 2001 grand am 3. Fuel Circuit/System Description The fuel tank pressure (FTP) sensor measures air pressure or vacuum in the evaporative emission (EVAP) system. in 4 mins 13 years ago Aug 12, 2018 路 Are P0440, P0441, and P0446 codes related in Pontiac Grand Prix? Yes, P0440, P0441, and P0446 codes are all related to the evaporative emission control system in a Pontiac Grand Prix. Getting The Parts Store To Give You Codes Is Not Fixing The Issue. Detailed repair manual for the 2007 Pontiac Grand Prix V8-5. Feb 20, 2024 路 Potential Causes of the P0446 Code If you have a P0446 code, it means that your vehicle’s Evaporative Emission Control System (EVAP) has detected a malfunction in the vent control circuit. With this code, you shouldn’t notice any symptoms besides perhaps a noticeable fuel smell. Mar 28, 2011 路 P0446 code came up. We have replaced the fuel filter and pressure is good. P0449 deals with the evaporative emissions control system. Car will not pass emissions because the evap purge system is in Not Ready state. I had it scanned, and it showed P0128: coolant temp below regulated temp. P0446 Code Meaning, Causes, Symptoms & Tech NotesThe P0446 diagnostic trouble code (DTC) indicates a problem with the evaporative emission control system vent control circuit. Pontiac Grand Prix 2006 For 1990-2009 cars only Makes 馃 Pontiac 馃 2006 馃 Grand Prix 馃 DTC 馃 DTC P0446 Understand P0446 OBD-II code: causes of EVAP vent control circuit failure, symptoms like check engine light activation, and diagnostic tips at RepairPal. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle’s fuel system. Pontiac Grand Prix 2000 For 1990-2009 cars only 馃 馃 馃 馃 馃 馃 DTC P0446 Evaporative Emission (EVAP) Vent System Performance Jul 13, 2012 路 How do you repair P0446 trouble code on a 2000 pontiac grand prix gtp? P0446 - Evaporative Emmission Control System Vent Control Circuit Evap vent valve has only one purpose. Find out what you can do next to solve the problem you are experiencing. Once a calibrated vacuum Dec 12, 2016 路 The 2004-2007 Pontiac Grand Prix is known to have issues with the EVAP system, a part of your emission control system. I crank the motor and fires for a couple seconds than dies, when I crank it and then after it fires I have to feather the throttle pedal for it to idle, once that happens it idles just fine. This trouble code is a reference number that is given to you when you plug your Grand Prix into a OBDII scanner. 3Li LS engine. The ECM's driver controls the ground, and when grounded, activates the valve (closing it). Learn what Engine Misfire Detected means, location and how to repair. P0446 is a trouble code that sets when your car's evap system fails a pressure test for either high vacuum (indicating a blockage. The controller also uses this FTP signal to determine atmospheric pressure for use I have a 1996 Grand Am 3. Evap Canister Grand Prix. I'll start by saying my problem turned out to be my fuel tank pressure sensor. If the ECM detects a short to ground The FIXD wireless OBD2 scanner and free app for iPhone and Android translates your check engine light into plain English so you can rest easy. Cant get more than - Pontiac Grand Prix question Detailed repair manual for the 2001 Pontiac Grand Prix V6-3. The control module supplies a 5-volt reference and a low reference circuit to the FTP sensor. Definition: EVAP (Evaporative Emission System) purge/vent solenoid circuit condition Explanation: The solenoids and system wiring are monitored for opens or shorts Probable Causes 1- Purge or vent solenoids defective 2- Check connevtor and wiring 3 how to change canister purge solenoid 2003 pontiac 3. Jan 13, 2013 路 P0446 Evaporative Emmission Control System Vent Control Circuit - A code P0446 could mean one or more of the following has happened: Faulty vent valve -- Open, short or excessive resistance on Vent valve control circuit -- Blockage of vent valve -- Bad PCM Forum Site/Club New Site/Club News Your Story About Evap Code P0446 or P0455: Tap the gas or it dies & Erratic shifting. 5 engine. Is it possible the code will reset, now that temps are warmer ? Is there a certain number of engine starts that will clear it ? Is there a way to clear the codes quicker, so I can see if it comes back How to Fix a P0446 Engine Code on your Pontiac G6 or Chevy Malibu 3. My 2008 Pontiac Grand Prix is very hard to fuel, the pump keeps clicking off. 2004 Grand Prix. Trouble code P0446 means:Evaporative emission control system vent control circuit malfunction Come along with Eric O. I have some issues with the car that I'm doing my best to fix with out bringing it to the dealer. I have notice that most people will get sucked DTC P0446. The video also provides steps on how to read the 2004 Pontiac Grand Prix GT1 3. Specifically, it indicates that there is a: Random, Multiple Cylinder Misfire Detected P0300 is a random misfire code, which means that it is not going to tell you which cylinder is causing the misfire. My 06 Pontiac G6 is throwing a p0446 code, I've replaced the gas cap and the purge valve up front next to the engine but it still comes back after I clear the code. Its giving a code P0446 Evaporative Emissions Vent Control Circuit. Any help would be appreciated. It often appears with, or is related other codes, such as P0420, P0446, and very often P0440. It closes in order to seal the vent so the EVAP system can pressurize and ensure there are no leaks. Our first case study involves a 2004 Pontiac Grand Prix. The controller also uses this FTP signal to determine atmospheric pressure for use May 29, 2025 路 The 2004-2007 Pontiac Grand Prix is known to have issues with the EVAP system, a part of your emission control system. Two codes p0446 and p0449. The customer complains that the fuel tank is very difficult to fill with gas; I have also noticed that there is an emissions test report from the state on the dash. Pontiac Grand Prix P0496 Causes There are many things that can cause the P0496 trouble code on the Pontiac Grand Prix. 8 AND CODE P0446 Been working on car for 2 months now. Aug 6, 2018 路 When the Pontiac Grand Prix computer detects that the EVAP system is purging when it should not be, it will throw the P0496 OBDII code. 4L, new MAF, codes p0443 and p0449 for evap. Dec 22, 2024 路 The P0446 code is often triggered by a malfunction in this system, which can lead to decreased fuel efficiency, rough idling, and even a strong fuel smell. 3L. So I've got a 2008 Pontiac grand prix base model v6 that has the trouble code p0446, I have to turn the key to the "on" position without starting it t Hello, hopefully someone here is more knowledgeable than my dumb self. The controller also uses this FTP signal to determine What does this mean? OBD2 Code P0455 Pontiac definition: This indicates a fuel vapor leak or lack of purge flow in the EVAP control system. Popular Pontiac Grand Prix fault codes along with an explanation of their meanings. P0446 Indicates that there is a fault in the evaporative emission control system. This vent valve is also known as the purge valve. Got a 2005 grand prix gtp. P0300 is a general diagnostic trouble code. This allows a vacuum to be applied to the EVAP system. P0446 DELPHN. It’s generic, meaning it has the same definition for the Pontiac Grand Prix as any other vehicle. 8L SC VIN 4. 156,000 and no warning codes. uhgny lmu biwkpi rywiz qiw gnjli joakp rapq qljw nypttcq