P1338 code but camshaft position sensor and wiring appear ok [Archive] - Audi Forums

: P1338 code but camshaft position sensor and wiring appear ok


ck06
02-06-2016, 11:43 PM
Hello,
I have the P1338 code (Camshaft Position Sensor (G40): Open or Short to Plus) together with misfires on cylinders 1-3. I did switch both CPSs and the code stays on the same side. I also tried replacing it but to no avail. The Bentley manual has some instructions to check continuity between CPS and ECM and the wiring is ok too.
The manual says to replace the ECM but I am not sure the issue is really in the ECM. Any of you had this problem or have any idea how to further troubleshoot?
Thanks,
Christian

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1998 Audi A4 2.8l AHA

AB452.8Q
06-09-2018, 09:03 PM
Do you drive close to empty on fuel? also CPS do have a correlation to engine timing I believe, so it would make for the misfire codes to come up, real issue is what kind of replacement sensors have you used, now remember German vehicles need quality parts, made in Germany. Also have you clear your CEL after replacement? If not how long has your CEL been on after replacement of CPS?

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