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Error code p0420 pontiac grand am

Learn what does P0420 Pontiac Catalyst System Low Efficiency Bank 1 means? · My Pontiac Grand AM GT has a P0420 code plus change oil light on. The Oil light came on first, and a day later, the check engine light came on. Page 1 of 5: GM EGR Valve Test ( P0401, P0403, P0404, P0405). Symptoms of a BAD EGR Valve. What tools do I need? Circuit Descriptions of the GM EGR Valve. P0420 code ( Catalytic Converter) can be generated by any number of sensors upstream of the converter. More than likely there is a problem with the evap recovery system or the valve that' s supposed to prevent over- filling the. · Diagnostic code error P0306 and P0420 on Pontiac Grand Am GT - Pontiac Grand Am question. · We have a Chrysler Town & Country 3. How To Diagnose A Check Engine Light : Code P0420 Catalyst. How to fix code P0420 or. P0420 code - Code goes on for.

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    P0420 code 1 answer. Pontiac Grand Prix Base- Maintenance & Repair. Used Pontiac Grand Am. 734 listings starting at. got the SES light the other day and got it scanned came back P0420 i did a search here and didnt find anything northstar powered. Common cause for the check engine light code P0420 catalytic converter. Grand Prix ; Grand Am ; Montana. Misfire and EGR valve codes may also accompany P0420. Pontiac Grand Am 3. 4L V6 P0420 Catalytic Efficiency Bank 1 code was tripping every 15 miles.

    After replacing the thermostat. · Recently my Pontiac Grand AM has its SES light on, and I got the DTC code which is P0442 ( EVAP Emission Control System Leak,. Possible Causes and Repair Information for P0420 code. P0420 Catalyst System Efficiency Below Threshold Bank 1. P0420 PONTIAC Catalyst System Low Efficiency. We have a Chrysler Town & Country 3. 8 with a P0420 Catalyst System Efficiency Below Threshold ( Bank 1). Join us as we diagnose this code as being a faul. Read and Download Honda Odyssey P0420 Error Code Free Ebooks in PDF format. RAR HOW MUCH DOES AN AIR CONDITIONER COMPRESSOR COST PONTIAC GRAND AM. My check engine light is on, and the code is P0420, it' s a Pontiac Grand Am. What does the code mean? My Grand Am GT ( 153, 000kms / 95, 000 miles) has the engine light on and I am getting the p0420 code.

    I was hoping I could get an answer from. More than just a list of Pontiac Check Engine Light Codes! Our resources can help you fix your check engine light now! Informative articles, technician advice. Pregunta - Hello I have a problem, my pontiac grand am GT is the. Hello I have a problem, my pontiac grand am GT is the error code P0420,. Pontiac - Grandam : : Getting OBD Code P0301 / P0420? EGR Valve Throwing A Code. I drive a 1995 3. 1L V6 Pontiac Grand Am SE. Getting Error Code. · Aftermarket converters will usually cause a P0420 catalyst efficiency code on gm cars. How do I fix OBD Code P0404 on a Pontiac Grand AM? Why does my Pontiac Grand Prix have code P0420 again after replacing the catalytic converters. Should I use factory parts this time?

    P0420 Catalyst System Efficiency Below Threshold. and fixing a P0420 error code. 140, 000 miles on it. i am getting error code P0420. OBD II trouble code P0420 Catalyst Efficiency Below Threshold ( Bank 1) is one of the most common codes encountered on the GM 3. 4L equipped cars and mini- vans. Usually, this code points to a bad catalytic converter but not always. since the rear ( downstream) oxygen sensor could be bad ( this is the O2 sensor after the catalytic converter). 1999 Pontiac Grand Am error P0442, EVAP code. Pontiac Grand Am Code P0420. Good Afternoon, My Grand Am Has A P0420 Code. Apr 29, · Aftermarket converters will usually cause a P0420 catalyst efficiency code on gm cars. OBD Code P0301 / P0420? We bought a used Grand Am. P0420 code 1 Answer.

    Code goes on for a week and off for a week, I took it to the shop and they said I had a bad gasket that connects the converter to the muffler, they fixed it but light is back on. Pontiac Grand Prix. A P0420 error code stands for " Catalyst System Efficiency Below Threshold". You may need a new catalytic converter or 02 sensors. See how to fix it here. Definition of error code p0440 - Evaporative System Malfunction, Large Leak. Read emissions expert information and diagnostics for fault code p0440. Trouble code P0420 means:. In a Pontiac Grand Am error code P0410 means there is an emissionsproblem. · My service engine light keeps coming on. at 12: 42 AM about the Pontiac Grand Am GT Coupe. P0420 is the code. Jun 19, · Here is a tutorial on P0420 code fix catalyst efficiency below threshold How To Diagnose a p0420 code. p0420 Code Fix how to diagnose and fix a Catalytic Con.

    Page 2 of 5: How to Diagnose Trouble Code P0420. How to Test Trouble Code P0420 ( GM 3. TEST 1: Checking for a Broken Catalytic Converter. Catalytic Converter is Rattling. Broken Pieces Inside Catalytic Converter. Learn more about Pontiac Grand Am at the Edmunds. Pontiac Grand Am: DTC code P1404. This fix seems to have corrected my error also,. Originally recorded October 26,. Also see Part 2: youtube. v= K40aLgT9- Gk Part 3: com/ watch? v= HL4K7CE6C0M It was t. Any suggestions for code P0420 & P1404 for a 3.

    - Is an EGR Valve on a 3. 8L difficult to clean or remove & replace? · Possible Causes and Repair Information for P0420 Pontiac code. Learn what does P0420 Pontiac means? P0420 Pontiac Catalyst System Low Efficiency Bank 1. P0440 Pontiac Evaporative Emission System. Loose fuel tank filler cap is the most common cause that triggers the P0440 code. Pontiac Grand Am. Feb 02, · Catalytic converter clogged and problem code P0420. How to fix and repa.