P1570, P0507, P0411 - 2001 New Beetle 1,8T

factory3 · **Joined:** Sat Mar 10, 2007 6:41 am **Posts:** 2

Hi,
The check engine light is on and when I checked the error codes it showed me the following:

17978, P1570 - Engine Control Module Disabled
16891, P0507 - Idle Air Control System: RPM higher than expected
16795, P0411 - Secondary Air Injection System: Incorrect flow detected
00532 - Supply voltage

What does that all mean? What needs to be fixed? Is there any source which can explain what needs to be done when a certain combination of codes appear?

I own the Bentley Manual for my model (2001 Beetle 1.8T) but it only lists the codes and does not point to the part I should take a look at. I have to say that I'm rather used to working on 60's and 70's beetles so all this electronic stuff is new to me.

Any help would be greatly appreciated. Thank you.

Frank

Sponsored Links · **Joined:** 29 Jun 2004 08:12 pm **Posts:** N/A

Mohawkmtrs · **Posted:** Sat Mar 10, 2007 9:09 am

Check IAC and IAC circuit.

Check Secondary Air Injection pump, valve, circuit and hoses for leaks, blockages.

Your manual should explain this.

Good luck and keep us posted.

jeff compton · **Posted:** Sat Mar 10, 2007 9:37 am

If I remember correctly MAF's and throttle body's are high replacement items on some volkswagen's

factory3 · **Joined:** Sat Mar 10, 2007 6:41 am **Posts:** 2

After I couldn't locate the problem I went to a VW repair shop. They found a broken vacuum line and, in addition, a timing belt which was about to disintegrate. Lucky me

Thank you for your help.

Frank

P1570, P0507, P0411 - 2001 New Beetle 1,8T

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