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The EPC light normally comes on for electrical throttle issues. Either the gas pedal inside the car that fails or the motor actuator that fails on the throttle body causing the butterfly valve not to operate.
the belt slips, and the engine goes into limp mode, and the epc light will come on- to protect itslef until its fixed. Once its fixed...you may have to decode her up to 9 times to get it to start...I did. Ive done 5 timing belt changes on these blasted cars and every time it slips a tooth and the engine cuts itself off with epc, i have to decode it at least 8 times. good luck. and to the idiot who said gas cap..get a life .
It sounds as if your vehicle may have severe water damage to the engine. The engine sensors on the golf are suseptable to water damage and can result in epc light that you are seeing on your dash, or so i was told by VW. I replaced all the sensors, alternator and the computer on my original engine, but this action didnt fix the problem. So i bit the bullet and replaced the engine, and haven't had a problem since. If you do the labor yourself it can be done as cheap as $4000. I hope this helps mate.
When this light comes on, yopu could have such a sudden power loss.
However, before visiting a workshop for help, do the following basic checks:
No air leak into the intake system.
Ensure that all the electrical socket in the engine management system are well fitted, no loose contacts.
This light can be caused throttle valve malfunction, MAF, brake lights,
EVAP , 02 sensor, secondary air pump.
suggest you visit a competent dealer or independent shop for help. They will scan the EPC and run 'Throttle Body Adaption'. and diagnos the problem. Ask for a garage with a 'Ross Tech VAG-COM' or a ' VW diagnostics scanner.'
See here for a shop near you : http://www.iatn.net/shopfinder/
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.
the epc light is telling you that you have a feuling problem, get a mechanic to run a diagnostic scan to find the suorce, it should be only something small because the only dangerous light to look for is the oil light
I doubt it's the fuse. A very common problem is the brake switch on your brake pedal goes bad. This causes the EPC light and no brake lights. This switch was recalled by VW in 2007. Here is the story from USA Today http://www.usatoday.com/money/autos/2007-02-26-volkswagen-recall_x.htm Your VW dealer will replace this switch free...
Tell him to clean the electrical connector at the throttle body with 90% rubbing alcohol. He may want to use a nylon brush on the contact pins while cleaning. I'm pretty sure the car needs a throttle adaptation performed also. Find a shop with a Vag Com scanner, they can do it for you.