2000 Beetle 1.8T EPC, Check engine lights???

I have a 2000 Beetle 1.8t with 32,000 mi. For about 6 months the EPC light has been coming on. Also the Check Engine light comes on. Sometimes with the EPC sometimes alone. VW service told me I needed a throttle body. I took it for a second opinion and they said I didn't need a throttle body but I needed a combi valve. So I replaced that. When both lights kept coming on they said that I need to have my throttle body realigned. Have the New Beetle's throttle bodies been failing? What does the EPC light usually indicate? This all started happening after I left the radio on and ran down the battery.

Reply to
elliot gainway
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First off make sure you have the most current brake light switch, level "D" is the current version. There is a "WT" recall in effect now, call up your local dealer with your VIN number to see if you car is covered. If so, you will get the updated brake light switch if needed for free.

While not real common for throttle bodies to fail, it can happen. However, I would be willing to bet you have more of a wiring harness issue. What is happening is where the harness is routed over the starter, the wires for the throttle body are stresses and the copper strands can fail while the cover of the wire looks fine. You end up with poor electrical flow though said wires and the result is a nutty EPC light. The fix is an overlay wiring harness, in other words, route

6 new wires from the throttle body to the ECM. I've done this a couple of times.

Leaving the radio on and running down the battery is nothing more than leaving the radio on and running down the battery. Unless you are far from home, then it is a long walk.

Reply to
Pencilneck

Re: 2000 Beetle 1.8T EPC, Check engine lights??? Group: rec.autos.makers.vw.watercooled Date: Thu, Oct 9, 2003, 11:27pm (MDT+2) From: snipped-for-privacy@4130-products.comZ (Pencilneck) elliot gainway wrote: I have a 2000 Beetle 1.8t with 32,000 mi. For about 6 months the EPC light has been coming on. Also the Check Engine light comes on. Sometimes with the EPC sometimes alone. VW service told me I needed a throttle body. I took it for a second opinion and they said I didn't need a throttle body but I needed a combi valve. So I replaced that. When both lights kept coming on they said that I need to have my throttle body realigned. Have the New Beetle's throttle bodies been failing? What does the EPC light usually indicate? This all started happening after I left the radio on and ran down the battery. First off make sure you have the most current brake light switch, level "D" is the current version. There is a "WT" recall in effect now, call up your local dealer with your VIN number to see if you car is covered. =A0=A0=A0=A0If so, you will get the updated brake light switch if needed for free. While not real common for throttle bodies to fail, it can happen. However, I would be willing to bet you have more of a wiring harness issue. What is happening is where the harness is routed over the starter, the wires for the throttle body are stresses and the copper strands can fail while the cover of the wire looks fine. You end up with poor electrical flow though said wires and the result is a nutty EPC light. The fix is an overlay wiring harness, in other words, route 6 new wires from the throttle body to the ECM. =A0 I've done this a couple of times. Leaving the radio on and running down the battery is nothing more than leaving the radio on and running down the battery. Unless you are far from home, then it is a long walk.

Reply to
lolajoker

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