1988RedT2 MegaDork
5/5/23 12:55 p.m.

So, for any that have been following my E39 thread, I didn't want this to get lost since that one's been kicking around awhile.  I just pulled this camshaft position sensor thinking I was well on my way to fixing a problem by installing a new sensor. 

Strangely, however, I see the old sensor has these worn areas that to me might signal a deeper problem.   Whereas the body of the sensor is black plastic, these areas seem almost to be gouged slightly, and show a silver color.  I suppose pulling it out of the head could have gently scraped the part, but I'm wondering if something else could be up?



Well, after wiping the area clean, I think maybe I'm just being a Nervous Nellie.  At this point, I'm just stuffing the new one in and seeing what happens next.  I do welcome your comments, however!

Also, for any that caught it, yes, I'll be sure to pull the old o-ring out of the head before I install the new one!

Slippery GRM+ Memberand PowerDork
5/5/23 1:32 p.m.

If you are talking about the wear at the end of the arrow, I wouldn't worry about it. 

1988RedT2 MegaDork
5/5/23 1:36 p.m.

In reply to Slippery :

Yes, that is precisely the area I was talking about.  There is a similar area on the other side.  After wiping it clean, I came to the conclusion that it was likely inconsequential.  Just wasn't sure if there was a whirling piece of metal that ran close enough to the sensor that it could be scraping it.

I'm about to clear the code and take it for a test drive.

1988RedT2 MegaDork
5/5/23 2:32 p.m.

Well, that was rather more exciting than I expected.  Clear codes.  Start car.  Car fires once, then dies.  Hmmm.  Crank again.  Car starts, and runs like hot garbage for about 15 seconds, then gradually smooths out.  Did a tentative loop through the neighborhood to see if it was going to stay running. 

No more drama.  Took it for a good few miles, varying speeds and throttle positions.  I don't drive it everyday, so I'll let my son tell me if it feels good to him.

Checking codes once more with INPA, then calling it done for now.

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