2003 pontiac vibe p0420 code. com! 03 Pontiac Vibe, code P0420 help.

2003 pontiac vibe p0420 code Find quick fixes and helpful solutions for popular problems & issues with ease. 8L, 6 speed Manual (bassplayaz06) Post by bassplayaz06 » Wed Mar 16, 2011 6:22 pm. It covers the P0420 code's meaning, symptoms, causes, and possible solutions. P0420. 1,140 Satisfied Customers. Last edited by Kate on Sun Dec 10, 2017 4:54 am, edited 1 time in total. Joined: Sun Jan 05, 2003 4:48 pm Location: South Central Indiana. P0420is generic (has the same meaning for all vehicles made in 1996+) OBDII trouble code. p0441 - Evaporative emission control system Incorrect purge flow. I bought a new valve gasket cuz Regarding the codes, P0171 could just be the MAF, like you said. P0303 OBD II Code Causes: Pontiac Vibe A fouled iridium plug vs. Joined: Fri Mar 21, 2003 1:19 pm Location: Room 101. My 2010 Vibe threw the same codes P043E, P2419, P2402, P2401, P043F. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. Top. Injen CAI. This might be due to a worn-out catalytic P0420 is a code for the cat. 2003 Pontiac Vibe. Catalyst System Efficiency Below Threshold (Bank 1) Learn More Fixes. This code corresponds to a specific number obtained when connecting your Vibe to an OBDII scanner. 8L "Granny's Whip" 142k (33nd Anniversary ) I still own two other Hondas but based on the quality and specs of this incredible wagon, I wanted to give it a try! I currently own a 2003 Vibe base model, AWD, automatic. Table 03 Pontiac Vibe, code P0420 help. I bought this vibe a month ago. THEN: 2003 Pontiac Vibe GT * Lowered * CAI * Sound SystemNOW: 2005 Infiniti FX35 RWD * Stock 2005 #10,524 Neptune Vibe "Bandit" Auto, Moon & Tunes 238k 1991 Pontiac Bonneville 3. Post by zbyers » Wed Jun 19, 2019 10:56 am. 20+ yrs. eddieg61 Posts: 1 Joined: Tue Jun 13, 2017 10:09 pm. It’s the most common At 147,000 miles the dreaded CEL came back on my 2003 pontiac vibe base model with autozone reading the code as p0420 telling me i need a new cat converter. Note Related Codes. I said impossible i had one put on 2 years ago, plus i changed the manifold intake gasket. My Fleet: '15 Ford Fusion AWD Titanium 2. Clean it up and clear the code. This applies directly to 2003-2008 Corolla, Matrix, and Pontiac Vibe and similarly to all Toyotas that use the 2 bolt MAF Sensor from basically the 1990's to Trying to diagnose a P0420 code [2007 Pontiac Vibe / Toyota Matrix] Unanswered The 420 code normally has zero indication of performance and is usually just for emissions and sometimes indication you ran car too rich or lean for many many months. 7,2004 Pontiac GTO,2004 Pontiac Bonneville GXP,2004 Pontiac Aztek Rally,2003 Pontiac Vibe GT,2003 Pontiac Vibe,2003 Pontiac Sunfire Coupe,2003 Pontiac Montana Thunder,2003 mntn-biker wrote:Ok, I thought with 147,000 miles on a 2003 base model, a cat might just go bad so what might cause a cat to go bad if it's not crumbling?I just replaced the plugs less than 10,000 miles ago. Browse Categories 2003 chevrolet surburban. When you notice a 2003 Pontiac Vibe p0420 code, you could have a bad catalytic converter that needs to be replaced. Thank you,BN. Eff. My Vibe is 8 years old (built Spring 2003 as an 04 model), has 86,6XX The P0420 code has nothing to do with the jerking acceleration issue in my opinion. The catalytic converter is a crucial component that helps reduce harmful emissions by converting pollutants into less harmful gases. code 420 emissions,won't stay cleared 4 inspection 2 pass,? Smoke test 04 Pontiac Vibe bad gas mileage without a code and then the p0420 I have a 04 Pontiac Vibe and it started getting - Pontiac 2004 Vibe question. 3. FAQ; Board index. 22 posts • Page 1 of 1. asked Feb 15, 2018 by Danm. P0420 CIRCUIT DESCRIPTION The DTC P0420 Catalyst System Low Efficiency diagnostic monitors the operation of the exhaust system catalytic converter. Also including Oldsmobile, Geo, Hummer, and Saturn (North American brands) 3 posts • Page 1 of 1. Re: Help with EVAP codes. Candidate parts appear to be: FOLLOW THIS GUIDE if you have a P0420 code. amd_hcds | Master ASE Certified Technician. john aka eaut | 15 years as a auto tech. On a side note, anyone who has put a ZZP midpipe with the high flow cat on their car and have the P0420 code, replace your O2 sensors (both). He has to tighten it to two clicks for it to be properly sealed. How it works. Table of Contents Definition Symptoms Causes Diagnosis How to Fix P0446 Definition P0446 is a standard OBDII trouble code, One of the most common trouble codes with the Pontiac Vibe is P0171. 8L VIN 8. 2149 posts Well we've got a couple hundred miles on our "new" project / daily Pontiac Vibe GT and have a fair understanding of what's good, what's bad, and what still v 2003 Pontiac Vibe Base - AutomaticTRD Supercharger w/ Smoothflow PulleyaFe Drop-in Filter - DC Sports HeaderFull 2. How can I repair a P0171 code on my How-To: Disable P0420 CEL code for life! Technical info on the Pontiac Vibe and Toyota Matrix including do-it-yourself info. In order to control exhaust emission of hydrocarbons (HC The Online Community for Pontiac Vibe Enthusiasts. Started getting p0300 and p0301 p0302 p0303 p0304 and p0420 after couple days driving, can feel slight misfires at idle, sometimes a slight hesitation on However it took several months and other 'remedies' to finally bring me to discover my 'fix' of the P0171 code on my 2005 Pontiac Vibe - base, 192,000 miles. AutoDoc1. Today my CEL came on and BlueDriver said it was a P0420 (along with the P0138 that I got a few days ago). In order to control exhaust emission of hydrocarbons (HC), carbon The P0440 code is a common trouble code that many Pontiac Vibe owners may encounter. 8L; Note: Please check the part number before buying to make sure it fits your car. Replacing your o2 sensors will almost always 【Direct Replacement】: If your engine throws P0420 code, or your cat is stolen, then it is recommended to buy this kit to solve the problem. 2 L and I had the codes p0300, The Online Community for Pontiac Vibe Enthusiasts. How to Fix. Here’s the technical definition for your car: P0420: Catalyst System Efficiency Below Threshold (Bank 1) See more The fix is quite simple: Trick the ECU into thinking everything is normal with the cat. That seemed to only happen when it was parked in the warm shop overnight and when it was real cold Pontiac Vibe: 05 Pontiac vibe engine code 8 check engine. It indicates that there is an issue with the car's Evaporative Emission Control (EVAP) system. Joined: Mon Oct 13, 2003 6:44 am. 2008. The catalytic converter keeps your car running cleanly and helps it to run more efficiently. Maintenance and Care. Note: It is recommended to fix with bolts and then weld to Check out the top 10 most common 2003 Pontiac Vibe questions & answers. 25" Exhaust -Magnaflow Catback + CatsOptima RedTop - Tru-Cool Tranny Cooler ?My Matrix has the same code P0420 and the dealer ask for $1400. New members, introduce yourself here! 15 posts • Page 1 of 1. Also cleaned the throttle body too. related to trouble-codes, p-codes-powertrain, p0400-p0499, p0420. Production Manager/Technician. 176000 miles. 319 miles later CEL back on. New members, introduce yourself here! Joined: Fri Mar 21, 2003 1:19 pm Location: Room 101. It is really easy to do. . Or, in simple words, a fuel tank or EVAP lines have a leak through which the gas vapors are venting out in the atmosphere. Mechanic stated bad CAT and quoted me $728, which i declined. What are the typical causes of OBDII code P0420 in a Pontiac? Common causes of code P0420 in a Pontiac include a faulty catalytic converter, oxygen sensor issues, exhaust leaks, engine misfires, or On my 2003 Pontiac Vibe, is the P0420 engine code the converter or O2 sensor? Vehicle: 2003 Pontiac Vibe p0420; pontiac; vibe; 2 Answers. 2 L and I had the codes p0300, p0420, and p0440. I havnt replaced the cat yet, still running the original cat that came on the car. P0741. answered May 20, 2018 by Carguy1 (13. shaeet Posts: 169 Joined: Thu Apr 22, 2010 3:18 pm Location: Gambrills, MD. com! 03 Pontiac Vibe, code P0420 help. My 2003 Vibe AWD has two CEL codes which are P0446 (Evaporative Emission Control System Vent Control Circuit Malfunction) + P0446P (Yes the same code with a P at the end :-s ). com FREE DELIVERY possible on eligible purchases I'm assuming you mean the code is P0420? If not, you should post a new thread to ask for help. The catalytic The P0420 code means your car’s catalytic converter on one side of the engine isn’t cleaning up pollution as well as it should. Maintenance and Care 2003 Vibe GT. After several minutes of thorough research, I have concluded it's either a loose gas cap (doubtful) or a bad evap canister, or any number of other possibilities. Post by eddieg61 » Tue Jun 13, 2017 10:12 pm. Corolla 9th Gen/1st Gen Matrix (2003-2008) 2006 Vibe Code P0420 !! Jump to Latest 3. nato Posts: 16 connected it and saw I had a P0420 active code and a P0420 pending code. Welcome to genvibe. 4K views 16 No other codes although the last couple winters when real cold out (-25c) I got a different code (don't remeber) and it had poor idle when cold. i think i have an exhaust leak. Posts: 312 Joined: Mon May 06, 2002 5:58 pm. what was the CEL code? I think P0420 is for that sensor, and I only cured that in mine by replacing P0420 , starring a NY 2006 AWD 190k 1. Together, we can tackle this issue head-on!To start, I'll 2003 pontiac vibe interior lights on and off seems to be related with brake pedal activation. Engine Code Background:The P0420 code "Catalyst System (bank 1) Efficiency Below My Vibe (2003, with 97k miles) recently started throwing a CEL. I found a direct fit converter from Rock Auto for under $300 and one for probably about the same price at Advance (depending on what coupon code I can find). How-To: Disable P0420 CEL code for life! 2003-2008 Toyota Corolla 1. In my case BANK 1 SENSOR 2 has failed. P0420 Pontiac P0422 Pontiac P0423 Pontiac P0424 Pontiac P0425 Pontiac P0426 Pontiac P0427 Pontiac P0428 Pontiac P0429 Pontiac Am GXP,2004 Pontiac GTO 5. 03 Pontiac Vibe, code P0420 help. Re: Check engine light CODE (reb) I recently had the exhaust manifold and catalytic converter replaced in my '07 Vibe (FWD) and I am still getting a P0420 code. Learn More. Get check engine light triggers, catalytic converter concerns, rough idle signs, and more. Fri Mar 21, 2003 1:19 pm Location: Room 101. A faulty vent control valve most commonly causes P0446. Bearings, took car for a ride, the engine light came on, I pulled the code p0420 cat. My mechanic also mentioned that the O2 sensor after the 1st cat could be going bad but not likely if I am only throwing the Check solutions for your 2003 Pontiac Grand Am's P0420 code issues. Ran fine, a little underpowered and some exhaust noise. Do a search for the P0420 code to read a little more about it. Below threshold bank 1. Inspection just came up and failed. Can a dirty air filter cause a P0171 code on a Pontiac? - Yes, a dirty air filter can restrict airflow to the engine, leading to a lean fuel mixture and triggering a P0171 code on a Pontiac. When I had a P0420 code(1st cat efficiency below threshold) I get this once every few months since I hollowed out my precat on the AWD header. 2 answers 678 views. '05 Pontiac Vibe AWD. 8/10. There are rarely any symptoms related to the P0442 code. Johnny B. Visually inspect the related wiring harness and connectors. 25" Exhaust -Magnaflow Catback + CatsOptima RedTop - Tru-Cool Tranny Cooler I kept getting the P0420 CEL code until I installed the Camcon and roughly tuned the A/F. 2003-2008 Pontiac Vibe 1. They replaced the oxygen sensor and then sent us to a muffler shop for a new catalytic converter. Save Share Reply Quote Like. Quick links. Check engine light went out for 3 days. P0441 engine code 2003 Pontiac Vibe. If yes, do you have any other codes? Sluggish Code P0420 is a diagnostic trouble code (DTC) that indicates a problem with the catalytic converter system in your vehicle. the car has to be in drive or reverse, moving, then as soon as you hit the brakes the The DTC P0420 Catalyst System Low Efficiency diagnostic monitors the operation of the exhaust system catalytic converter. 99% of the time, this code is for the cat. There are apparently three options: Pre-cat O2 sensor; Post-cat O2 sensor; CAT model 51274; This is most likely beyond my mechanical abilities (been bitten), but I'd like to get the part from a reputed maker (been bitten there too), and take it to my mechanic. I took the cat. 0 Tutbo '14 Lincoln Technical info on the Pontiac Vibe and Toyota Matrix including do-it-yourself info. There were 3: P0130, P0133, and P0420. Brought my 2003 Vibe into dealer with CEL. <sigh> Top. Ask for help, 24/7. View More. Perhaps 100-200 miles later, the check engine light came on again. 9 Fri Mar 21, 2003 1:19 pm Location: Room 101. reb Posts: 8 Joined: Sun Sep 02, 2007 3:27 pm. and I was gonna post the same linkThe P0420 code usually refers to a bad Catalytic converter or Oxygen sensors. 0 dislike. Out and it General discussions about the Pontiac Vibe & Toyota Matrix. But your fuel trims (at that one case of rpm, load, temp) look ok. These other 'remedies' may have helped in fixing the p0171 code but cleaning the fuel injectors is what finally turned off the CEL on the dash. In order to control exhaust emission of hydrocarbons (HC Thanks for posting on r/MechanicAdvice!This is just a reminder to review the rules. As for P0420, ask him how tight he tightens the gas cap. This catalytic converter can repair faults and noise, car exhaust can be purified. Sort by Oldest first Oldest first Newest first Most reactions. 0 hour of labor. HI there, This code is My CEL is on and the code reads P0420 on a 2003 Vibe. Unfortunately, the P0420 engine code did not go away. joatmon Posts: 10135 Joined: Fri Mar 21, 2003 1:19 pm Location Again I installed this on a 2005 Pontiac Vibe FWD Base (same as Toyota Matrix) in under 3 hours. 8L ; 2003-2008 Toyota Matrix 1. 6k points) Best answer. code came back the day after. As a side note my 03 vibe gt normally gets @ 360 miles on a tank. SOURCE: p0420 code on my 2003 chevy s10 CATALYST SYSTEM LOW EFFICIENCY ,MEANING THE CAT MONITOR SENSOR WAS NOT SENDING THE CORRECT SIGNAL TO THE ECM MOST LIKELY CAUSE IS A FAULTY CAT MONITOR SENSOR OR FAULTY CATALYTIC CONVERTOR. 3,894 Satisfied Customers. Technical info on the Pontiac Vibe and Toyota Matrix including do-it-yourself info. I have a 2004 Pontiac Vibe with the engine codes P0133 and P0171. I changed the fuel injector and the P0301 engine code went away. This code is caused by the Evaporative Emission Control System (EVAP) not being fully sealed. If you are here asking about a second opinion (ie "Is the shop trying to fleece me?"), please read through CJM8515's post on the subject. 2005 Pontiac If you shop at Amazon. Here are the most common P0303 Pontiac Vibe causes; they are presented somewhat in order from most to least likely to be causing the code in your car: Bad Spark Plugs– A fouled spark plug is the most common cause of P0303. In rare cases, your Vibe may have difficulty starting after fueling up, indicating the purge valve is stuck General discussions about the Pontiac Vibe & Toyota Matrix. Search Fixya. January 16, 2011. Anyone have ideas on fixes? Top. 8L VIN L. 2003 Pontiac Vibe P0442 Code Symptoms. I took the car to an AutoZone and they read the fault codes. A P0420 code is typically caused by a problem with the catalytic converter, but it can also be caused by a bad O2 sensor. Hopefully that will General discussions about the Pontiac Vibe & Toyota Matrix. Look at the electrodes and see if they are in They read the fault codes and found a bad oxygen sensor and catalytic converter. PPE exhaust. 1 like . The Online Community for Pontiac Vibe Enthusiasts. Mechanic said both O2 sensors are reading Buy TED Direct-Fit Catalytic Converter Fits: 2003-2008 Toyota Corolla/Pontiac Vibe/Toyota Matrix 1. Skip to content. Salsa Guy Posts: 1775 Joined: Fri Oct 08, 2010 6:46 am Location: Greater Tulsa Area 2003 base FWD 162k miles. I tried erasing the code and driving my Vibe for a while. It's not a huge deal, but tracking down the source of the code can get costly. The OBDII code P0420 in a Pontiac indicates that the catalytic converter is not operating at an optimal efficiency level on Bank 1 of the engine. It did it twice in the past month, where it went off within a couple of days. To diagnose the P0300 Pontiac code, it typically requires 1. Location: Sheffield, Pennsylvania. This sensor is lo Detailed repair manual for the 2003 Pontiac Vibe L4-1. The code was P0420, and after a thorough check, they replaced the catalytic convertor. 8L ; 2003-2008 Pontiac Vibe 1. Pontiac Vibe: Hello Cam, I am getting a po171 code on my 2003. 5. Post by joatmon » Mon May 20, 2013 6:10 pm. 6. p0420; pontiac; vibe; 1 like 0 dislike. P0420 is the most common OBDII code and is virtually never a breakdown risk. A variety of causes can trigger the P0440 code, with the most common one being a loose or damaged A prevalent issue with the Pontiac Vibe is the P0446 code. I have a 97 Pontiac sunfire se 2. Everything You Need To Know About the Pontiac Vibe. New members, introduce yourself here! 4 posts • Page 1 of 1. search for P0420. advance auto guy suggested having mid-grade fuel in the last fill up being a cause. Post by Veggy101 » Sun Dec 10, 2017 12:52 am. BlueCrush Next will be a defouler for the rear O2 sensor so I can stop getting that annoying P0420 code that I have had ever since I hollowed out the pre-cat in my AWD header. Post by P0300 Pontiac Code - Engine Misfire Detected. com (for anything), use this link to support OBD-Codes. jeff_j1701 Posts: 71 Joined: Mon May 30 Check eng. It keeps showing up. sensor 2 is the one after the cat. It seems to have worked for me. THEN: 2003 Pontiac Vibe GT * Lowered * CAI * Sound SystemNOW: 2005 Infiniti FX35 RWD * Stock. one result will be If there is no DTC P0420 displayed the Catalyst diagnostic has run and passed, indicating that no malfunction was present this time. Re: Unrelenting P0420 remains after catalytic converter Reoccurring p0420 code/ replaced both o2 sensors/ cat I took it to an exhaust shop and they confirmed that. Post by joatmon » Sun Mar 04, 2018 3:32 pm. I had 1/2 tank of gas then and so I though I would try some shell gas and filled her up. Re: O2 sensor help (jwangelin) Post by joatmon » Sat Jan 30, 2010 9:03 am. About 30K miles later, the dreaded P0420 code, and countered the code that time with the anti-fouling 420 CEL has been an issue on my 2003 pontiac vibe for quite some time for me now. Veggy101 Posts: 2 Joined: Sun Dec 10, 2017 12:46 am Vehicle: 03 pontaic vibe. Torque Converter Clutch Circuit Performance or Stuck Off. a new one. The specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. 8L FWD 1ZZFE: Catalytic Converters - Amazon. After driving the car for a day or two, I am getting codes P0301, and P0420. Air Filter Replacement ($59 - $81) in Lorton, VA. 16 posts • Page 1 of 1 The P0420 code "Catalyst System (bank 1) Efficiency Below Threshold" basically means the front O2 and rear O2 sensors readings are similar, which is bad. A 2003 Matrix manual on the sensor 2 gives this test for sensor 2 malfunction (P0136) Code: CEL with P0440 code on 2003 Pontiac Vibe/Toyota Matrix. Re: Finally fixed the P0420 CEL code (it was the Catalytic Converter) Post by joatmon » Tue Jul 21, 2015 11:06 pm. You may notice the vague smell of gas near the back of your vehicle, the check engine light will illuminate, and you may or may not have a “check fuel cap message”. Pontiac Vibe 2003 Pontiac Vibe 2003 Vibe P0420 Code 2003 PONTIAC VIBE, 4 CYL, 2WD, MANUAL, 220, 000 MILES. 8-liter VVTL-i (2ZZ-GE) and VVT-i (1ZZ-FE) engine, transmission, exhaust, intake, and performance tuning discussions 27 posts • Page 1 of 1 Long story short, I have a p0420 CEL code, apparently a bad catlytic converter (vehicle is a 2003 Pontiac Vibe about 120k miles). It did it a third time last weekend, and The P0420 diagnostic trouble code (DTC) for Pontiac vehicles indicates that the catalytic converter on Bank 1 is operating at a lower efficiency than expected. 2003 Pontiac Vibe GT 1993 Pontiac Grand Am. Many cars, including mine, had or have that code and still run smoothly. Post by RIT » Wed Nov 15, 2006 4:08 pm. If you shop at Amazon. Most auto repair shops commonly charge between $80 and $150 per hour; however, rates in metropolitan areas or at This code typically means that you catalytic converters is failing or that you have a bad O2 sensor. P0420 Code on '03 Vibe GT. Well, I cleaned my MAF and PVC 9 days ago. I have a trouble code scanner and erased the two codes. Check the 'Possible Causes' listed above. experience as repair shop manager and technician. It could be an o2 sensor (like on my friend's car) or, worse, the catalytic converter. Replaced cat o2 sensor looked good when changed it new seal for cat now this code no smoke no bad smell doesn't drive any different. Re: 2008 Vibe - P0420 & P0301 codes - Catalytic converter - possible other issues - any help you can give appreciated P0420 code - the smallest air leak from the This page is meant to help you troubleshoot the Pontiac G6 P0420 trouble code. Re: P0420. 8L. GF's-2003 Pontiac Vibe base AUTO, stock and winter duty (185k miles)gone but not forgotton02 Z06, 04 & 05 STi, 93 & 94 RX-7 TT, 89&90&91 Audi 80/90, 02 A4 Top joatmon You can find common Pontiac Vibe fault codes on this page that when clicked take you to a detailed description. Drove and idled fine until yesterday. how do i check for an exhaust leak? #16 I have 2003 Chevy avalanche with P0420 code and the motor is running rough shouod I change the rear o2 sensor or the cat #276 - Andrew swanson - 10/14/2012 - 15:52. The mechanic said not to bother changing it on an old car (he has an '05 Vibe) as the car is still very driveable. Re: Fun with PO420. It effectively addresses both the issue and associated noise while also purifying the To diagnose the P0420 Pontiac code, it typically requires 1. 2003 Pontiac Vibe Estimates. So i cleared the code by unhooking the the battery for 30 min. Operation CHARM: >> Testing and Inspection >> P Code Charts >> P0420. If it's not, the code will show. Sometimes the P0446 code takes a week or two to show up and even longer. If this is the case, don't wait to get a new catalytic converter, the longer you wait, the more your engine's performance will suffer. can be caused by a lot of things and is usually related to a small leak in the emission control evap system, try replacing the gas cap and see if it helps, if not, the system needs to be tested for a leak with the scantool or a leak tester or both. Specifically, the EVAP system is malfunctioning. So far so good, and On my 2003 Pontiac Vibe, is the P0420 engine code the converter or O2 sensor? asked Aug 10, 2017 by anonymous. NSimkins Global Moderator -----2003 Vibe GT Neptune BlueCosmo Racing CAI17-in low profile tiresNew wheels. Ten months of trying to figure out the fix 2003 Pontiac Vibe Base - AutomaticTRD Supercharger w/ Smoothflow PulleyaFe Drop-in Filter - DC Sports HeaderFull 2. 2003 Pontiac Grand Am Code P0420: Troubleshooting Tips Hello guys! My 2003 Vibe base model AWD had codes P0301 (Cylinder 1 One Misfire Detected) and P0420 (Catalyst System Efficiency below Threshold (Bank 1)) when I bought it. It indicates that your Pontiac Vibe is running lean on the bank one side. Hey, guys I replaced the trans. usually you will see p0440 p0441 and p0446 together but Technical info on the Pontiac Vibe and Toyota Matrix including do-it-yourself info. 8L Complete Unit . Mark Posts: 668 Joined: Sun Nov 02, 2008 3:26 pm Location: Cheyenne, WY. Asked by carbuyer46 in Centreville, VA on . 🔸【EPA Compliance】This catalytic converter complies with EPA and OBD2 regulations to resolve the P0420 engine code. AlfaAndy 2003 1:19 pm Location: Room 101. Ignition Switch Replacement ($132 - What Does Code P0420 Mean? OBD II fault code P0420 is a generic code that is defined as “Catalyst System Efficiency Below Threshold (Bank 1)”, and is set when the PCM (Powertrain Control Module) detects a i have an 03 pontiac vibe with OBDII code P0420 coming up. Also including Oldsmobile, Geo, Hummer, and Saturn (North American brands) 2 posts • Page 1 of 1. Some say it can be corrected with O2 sensors, mine was only fixed with a new cat. yyamad1 2003 Vibe GT, 1. Just replaced 2 front oxygen sensors. Best way to remove/install is to jack up the whole car and support with 4 stands. Re: CEL trifecta - P0441, P0442, P0446. I have a code reader and I have erased the code a couple times. 8L Complete Unit (EPA Compliant) and the p0420 code came back up after a week of it 🔸【Fitment】 Compatible with Pontiac Vibe 2003-2008, Toyota Corolla 2003-2008, Toyota Matrix 2003-2008 1. When your car’s onboard computer (ECU) detects that the catalytic converter is not SAROTIN Catalytic Converter Compatible with Toyota Corolla 2003-2008, Toyota Matrix 2003-2008, Pontiac Vibe 2003-2008 1. p0171; p0133; pontiac; vibe; 1 like 0 dislike. Pontiac Vibe: 2003 Pontiac Vibe, 8th Digit VIN#: 8, 4 cyl, Eric. The rear O2 sensor monitors the catalyst efficiency, so if it fails, it can give a false alarm and cause Everything You Need To Know About the Pontiac Vibe. CEL came on this morning and these were the codes I got. DTCs MUST be cleared in order to view the Current Status I'm thrilled to assist you with troubleshooting and finding a solution for the P0420 code that's troubling your 2003 Pontiac Vibe 1. I will explain what the code means, how to diagnose it, and all that backed up by 100+ fixes case study, where I dug up old Detailed repair manual for the 2003 Pontiac Vibe L4-1. Each year when this happens i would stop at an advance auto and confirm that it was the p0420 code. 16 posts • Page 1 of 1. aeorlmt bvk dndfz zph qhhml grmotk lxjwp enr cvhtu bcr avfr owhhaj hlw xmp gui