Question about 2000 Volkswagen Beetle
If I hold down the accelerator it will run but surges. When I bought the car it seemed to run fine but the epc indicator light was on. I noticed there was a electrical plug unplugged and when I plug it in this problem happens. The epc light turns off when connected but the engine will not run at idle. The connector is located on the big hose going into the air box, (air flow sensor?) is that sensor bad?
The EPC (Electronic Pedal Control) is the "fly by wire" system that controls the throttle, it took the place of the cable that went from the gas pedal to the throttle body on VW. If this light is on and there is also a P0102, MAF (Mass Air Flow) related code stored in the vehicle's computer, the EPC may be caused indirectly from a faulty MAF. If the EPC is on and there is no other codes stored, it could be a faulty electronic throttle body or need to be re-programmed. The vehicle's computer must recognoze the throttle body so when replacing it with new or used it will need to be programmed at the dealer. Recently I replaced a MAF (a common problem on VW's) on a VW Golf and when I cleared the code the EPC went off as well.
Check the engine codes, and replace or repair the faulty sensor (most likely the MAF sensor).
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Posted on Feb 08, 2009
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