Question about 2001 Volkswagen Golf
If the computer doesn't show anything and the car is misfiring, I would check for plugged fuel injectors or non functioning fuel injectors.
Listen with a stethoscope for clicking at the fuel injectors. It should sound rather loud and distinct with the stethoscope.
Use a noid light to attach to the detached harness connector that usually is connected to the fuel injector. It should pulse as the engine runs.
One can, also, disconnect the fuel injectors one by one until no change in engine idling is observed.
This would tell the technician which fuel injector is not firing.
Try fuel injector cleaner in the gas tank to clear out the fuel injectors.
Also, and Oxygen sensor that is going bad can cause erroneous information to be sent to the computer and cause a general misfire across all cylinders due to decreased fuel injection.
Good luck with this repair.
Posted on Nov 05, 2010
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Posted on Jan 02, 2017
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