Knock code again!!

[1.8quattro]

No ideas? I know there's a bunch of smart guys on here somewhere.

Could this be an electrical issue? A short or a harness problem of some kind? It doesn't make any sense that all four cylinders have exactly the same correction at the same time.

[CO AVANT]

I would get a voltometer and test voltage and ohm readings on the wiring. I had a broken wire on my map sensor last year that I only determined was broken because I was getting 0 value on the voltometer. No way you could "see" it was broken otherwise. Ask Diagnosticator for voltage and ohm readings, he should know them...

[1.8quattro]

OK, thanks for the suggestion, I will keep that in mind.

I had the knock sensor replaced today since that was a relatively cheap fix, we are running down the list of things that could be causing this.

There was a major issue with my timing belt job, apparently my old shop botched it . Things were loose, my belt tensioner had a huge crack in it and was close to failure (timing belt done only 25k mi ago), among other things. Unfortunately though that does not seem to have solved the problem.

It seems that cylinders 3 and 4 tend to show retard before the others, so the cam tensioner was also brought up as a possibility? I'm keeping this as the last resort since it is quite a big fix.

[CO AVANT]

I had my cam tensioner replaced when BobQ rebuilt my motor. The cam fault codes I was getting before my engine failure last year were either caused by the cams or cam tensioner or a combo of both since they both had "issues"...