Question about 2003 Pontiac Sunfire

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Pontiac model with problem: engine light illuminate, evav emission fail

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There is a motor on ur evap system find the line on ur motor it will have a tag on it saying evap follow it untill it comes to a sensor plug and make sure the valve is opening and closing when u key on and off

Posted on Jun 19, 2008

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What does engine emissions light mean


It's probably a failed sensor - such as the oxygen sensor.

Easiest way to check is to get somebody to do a diagnostic check on the car. An error code will identify the fault.
http://www.fixya.com/cars/r26087140-engine_check_light_illuminated
My Engine Check Light Is Illuminated

Feb 17, 2016 | Cars & Trucks

3 Answers

Why does check engine light blink when I accelerate?


Hi Ced ,
The malfunction indicator lamp (MIL) is located in the instrument panel cluster. The MIL will display as either SERVICE ENGINE SOON or one of the following symbols when commanded ON:
Check engine ! The MIL indicates that an emissions related fault has occurred and vehicle service is required.
The following is a list of the modes of operation for the MIL:
?€¢
The MIL illuminates when the ignition is turned ON, with the engine OFF. This is a bulb test to ensure the MIL is able to illuminate.


?€¢
The MIL turns OFF after the engine is started if a diagnostic fault is not present.


?€¢
The MIL remains illuminated after the engine is started if the control module detects a fault. A diagnostic trouble code (DTC) is stored any time the control module illuminates the MIL due to an emissions related fault. The MIL turns OFF after three consecutive ignition cycles in which a Test Passed has been reported for the diagnostic test that originally caused the MIL to illuminate.


?€¢
The MIL flashes if the control module detects a misfire condition which could damage the catalytic converter.


?€¢
When the MIL is illuminated and the engine stalls, the MIL will remain illuminated as long as the ignition is ON.


?€¢
When the MIL is not illuminated and the engine stalls, the MIL will not illuminate until the ignition is cycled OFF and then ON.

Trip

Mar 13, 2015 | 2003 Chevrolet Impala

1 Answer

1998 pontiac sunfire failed emissions no voltage


hi jeanne this sounds like the lamda sensor's are falty and or the cat have these checked

Dec 30, 2013 | Pontiac Sunfire Cars & Trucks

2 Answers

Engine Check light


Take it to autozone or another place like it and have them read the codes and tell us what they are.

Jun 19, 2013 | 2011 Jeep Wrangler Sport

1 Answer

2002 pontiac montana ecm


I would think you can get it reflashed at the dealer.

Mar 18, 2013 | Pontiac Cars & Trucks

1 Answer

What is Mfr Ctrlled Fuel and Air Meterig


try replacing your BARO Sensor Will a malfunctioning Barometric Pressure Sensor illuminate the check engine light or affect vehicle operation?
Yes, a failing BARO sensor can illuminate the MIL, and may cause drivability problems such as stumbling, stalling and sluggish acceleration.

Sep 09, 2012 | Nissan Maxima Cars & Trucks

3 Answers

What is code PO496 and PO455 for a 2007 Pontiac Grand Prix mean


P0496 is not alisted code.
P0455 - Evaporative Emission Control System Leak Detected Gross Leak (fuel vapors)
Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Possible a noticeable fuel odor caused by the release of fuel vapors Possible causes - Missing or loose fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- EVAP canister or fuel tank leaks
- EVAP system hose leaking
- Fuel tank leaking

Jan 24, 2012 | 2007 Pontiac Grand Prix GXP Sedan

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I too have a Pontiac G6 with a rattling catalytic converter. I was told that it need to be replace but is drivable by the Pontiac dealership. Today my car sound like a race car muffler and the check...


You'll want to go over your warranty information as emission systems have different warranties than the rest of the car. It might be possible to have the cat replaced for free if it still qualifies under the EPA warranty.

Anyway, you probably blew the exhaust gasket before the cat in question as there is too much back pressure in there since the cat is likely clogged.

Feb 25, 2011 | 2005 Pontiac G6

1 Answer

What does check engine light mean


It means your vehicle's computer has determined that a component or system in your emission control system is not working properly.
When the light comes on, one or more diagnostic trouble codes (DTC) are stored in the engine control module. These DTCs remain even if the light goes out. To address a Check Engine Light problem, the DTCs are retrieved and the appropriate troubleshooting information is followed in order to determine the problem.
Every vehicle manufactured in the U.S. has to first pass an Environmental Protection Agency (EPA) test called the Federal Test Procedure. This sets the acceptable limits of wear and/or failure for the emission control system-i.e., what conditions will ultimately cause a Check Engine Light to illuminate. These standards are closely regulated. If the emission control system is faulty and the vehicle is polluting the air, the Check Engine Light illuminates to alert the driver of this condition. (Note: A vehicle in this condition would fail an emissions inspection or smog check.)
Don't confuse the Check Engine Light with the maintenance or service light. These lights illuminate when a routine service is due. They are usually triggered by mileage, gallons of gasoline consumed, or some other type of vehicle-use measurement.

Jan 01, 2011 | Toyota Tercel Cars & Trucks

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