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Audi A4 1996-2001, S4 2000-2002 (B5) Cam position sensor connector


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Last Post: May 4, 2007 11:13 AM Last Post By: goatman
NY_Audi

Posts: 47
Registered: 10/28/05
Cam position sensor connector
Posted: Apr 21, 2006 12:29 AM
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I am looking for an adaptor that connects to the cam position sensor so I can monitor the output from the cam position sensor while the vehicle is running ('99 A4 B5 2.8L 30V).

I just ordered an OBDII PC interface--can I read the cam position sensor signal via this interface?

The engine starts and runs well, but once in a while (e.g. after running the engine for 10 minutes) I get the P1392 code (camshaft sensor short to B+ or open circuit--bank 2). I have replaced the camshaft sensor on bank 2 with no change in frequency of code occurence.

I am also hearing that this code occurs for a variety of timing issues.

Any ideas? Thanks
Port Fellamay

Posts: 4,105
Registered: 01/18/04
Re: Cam position sensor connector
Posted: Apr 21, 2006 10:00 PM   in response to: NY_Audi in response to: NY_Audi
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yeah check your basic timing....make sure you pull the code when the engine is running. There's resistance tests you can do on the sensors, and a variety of things outlined in the manual. Ideally you want vag-com to work on the car..If the cam sensor isn't working you should have misfire codes a long with it right?

If you have misfire codes that can possibly be causing the cam sensor error, or the basic timing off can be responsible for both. Tolerances are tight for basic timing on the newer engines, be sure that the belt is in good condition and note any work done on it that might change that.
nictrip

Posts: 1
Registered: 05/01/06
Re: Cam position sensor connector
Posted: May 1, 2006 8:03 PM   in response to: Port Fellamay in response to: Port Fellamay
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Let me say first..I hardly know anything about cars. I went to the dealership with the engine light on, they said that it was a problem with the cam sensor. I had the cam sensot replaced. The engine light went off. Next the ABS and brake lights came on, they stated it was an abs sensor, I had that changed and the light stayed on. I had the code read at a local shop and they came up with P1338, camshaft position sensor,bank 1 open circ./short to B+. I do not believe that thier reader read ABS codes. So I am confused as to whether the camshaft sensor code did not clear and the light went off or if the wiring of the camshaft sensor and abs are some how related and there is a short. Also if the ABS sensor was replaced would the code automatically reset or would I have to go pay the dealer to reset the code?
NY_Audi

Posts: 47
Registered: 10/28/05
Re: Cam position sensor connector
Posted: May 6, 2006 10:52 PM   in response to: Port Fellamay in response to: Port Fellamay
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Attachment DSC00501.JPG (610.5 KB)
I just checked my basic timing. The timing belt is perfectly lined up (with crank at TDC for cyl #3, the 3391 tool fits perfectly into the two cam sprockets).

However, here's what I found when I removed the valve cover for bank 2 (the bank that gives the camshaft position sensor error). It looks like I'm one tooth off on the intake valve cam.

I plan to remove the caps for the intake cam and the rear cap (for both cams), use the 3366 tool to reduce chain tension, and then attempt to move the intake cam by one tooth. Any suggestions? Thanks.
goatman

Posts: 11
Registered: 11/14/05
Re: Cam position sensor connector
Posted: May 4, 2007 11:13 AM   in response to: NY_Audi in response to: NY_Audi
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I replaced an engine had this code checked sensor, wires, and used a spare ecu. Turns out the cams were installed with the intake off one tooth from the reman company.

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