Question about 2002 Volkswagen Golf

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MIL LIGHT OUR LIGHT JUST STARTED TO COME ON AND NOW ITS JUMPING WEN WE ACCELERATE AND RUNS LIKE ITS THE CAT STOPPED U OR AN 02 SENSOR WHAT DO THINK?

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You need to have the ECU scanned to get the codes out - if the light is on, codes are stored. Post the codes and we'll go from there.

Posted on Sep 08, 2008

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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

I have a 1997 ford falcon wen I start it it idols fine then wen I accellarate it cut out help me plz


if vechicle idle fine but cut out off when you accelerate, could have restricted stopped up fuel filter or faulty tps sensor if so you will see check engine light flashing.

Jan 31, 2012 | Ford Falcon Cars & Trucks

2 Answers

Check engine light came on recently. Car then


The exhaust system has two 02 sensors One before the cat converter and one after. The #2 02 behind the cat converter is the one that trips the light if emmisions are unacceptable coming out of the converter. The #1 or front 02 sensor monitors and constantly adjusts the fuel to stay within parameters. If the #2 tries to compensate for an inefficient converter and it conflicts with the #1 02, the ebgine will run poorly due to either too rich or too lean fuel adjustment. Have the #2 02 sensor replaced and the converter checked. Good luck

Nov 15, 2009 | 2005 Toyota Corolla

1 Answer

90 Honda Prelude misses sometimes


Maybe the crank speed sensor is faulty - would confuse ECU and show wierd rev counter results. Any engine check-light (MIL) or stored error codes?

Jun 09, 2009 | 1986 Honda Prelude

1 Answer

MIL LIGHT


change the air
flow meter

May 28, 2009 | 2002 Volkswagen Golf

1 Answer

MIL light on


P0139 Secondary Heated Oxygen Sensor (Secondary HO2S) (Sensor 2) Slow Response This is the Catalytic Converter efficiency monitor, it is reporting that the Cat Conv is not working as it should (cleaning up the exhaust), how many miles on the car?

Dec 22, 2008 | 2003 Acura RSX

2 Answers

Trouble code p1647


hi, i work as a mechanic and have just had this code (p1647)on an 02 2.5 ltr x type. got the definition for 02 banks as well. as there are 2 sensors on each bank i took a look at the live data and it showed a slugish response on sensor two(after the cat). unplugging the sensor in the front cat brought up another code for bank two sensor two so this is obviously the right sensor. changed sensor and sent the car out, hope this helps, jon.

Dec 12, 2008 | 2002 Jaguar X-Type

3 Answers

Check engine light on a 2001 Toyota Corolla


No need to replace the MAF. If it was bad, the check engine light would have come right back on as soon as you started the engine. The MAF not only measures the air going into the engine, but also measures the air temperature. Those 2 circuits are constantly sending info the the ECU. If either would fail, the ECU would light the check engine light. P0171 is a common code for incorrect readings (dirty) in the MAF. Cleaning it always helps, and cuts off the light. Your acceleration problem may be either a wrong Air-Fuel sensor (the one before the cat), or an "aftermarket" AF sensor. "Aftermarket" AF sensors have been shown to not work properly in Toyota vehicles. Hope this helps

Sep 27, 2008 | 2001 Toyota Corolla

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