Camshaft position sensor - Can it go bad from misfires?

[manhattanprjkt8]

So question to everyone can the camshaft position sensor go bad from repetitive misfires? I am facing a serious repair for my S and need to get educated before I sign up to pay for it...

[AndyGs4]

I don't think so (?)

But a bad cam position can cause random misfires....

[handyvorb]

But a bad cam position can cause random misfires....

This.

...and typically that entire bank of cylinders will misfire somewhat evenly (misfire counters can be viewed with scan tool/VAG-COM).

[manhattanprjkt8]

so what would you guess estimate a bad cam position costs to fix

[halik]

so what would you guess estimate a bad cam position costs to fix

I think you can replace those with the motor still in; they're sitting on the back upper timing covers. Shouldn't be too bad.

[manhattanprjkt8]

ok, the dealer seems to be unsure of what to do with it...

Had the car in there 4 times in 3 weeks and they are telling me now the motor needs pulled to do some of this stuff, still waiting on a call to hear specifics on what needs completed.

1st trip - coil packs clear codes
2nd trip - misfire cylinder 3 replace injector and clean rails, added fuel cleaner
3rd trip - clear codes, engine light back on flashing at idle, they told me to run the gas through it.
4th trip - back with flashing light, need motor pulled, something is up

i

[AndyGs4]

Well, if the cam position sensor is bad, I think that can be done without having to pull the engine.

If the cam position sensor is reading correctly and you in fact have a bad cam position, that is going to require the engine to come out for a timing service. You either have a chain/tensioner problem, or more likely you need the cam adjusters replaced.

[vdubinteriors]

I hate to be the barrier of bad news but just telling you what happened to my s4. I had the same problems with my car. I'm guessing yours is also burning quiet a bit of oil? Probably going through 9 quarts every 3 weeks depending on how much you drive it. You also have that idle problem when you stop at a stop light. The car starts to shake and the rpms start to rev up when you have your foot on the brake. Every once in a while the car mis-fires and you are running on 4 or 5 cylinders. Well one day my car just broke down and was running on about 2 cylinders. We got it towed and brought to the shop. They took the entire engine out (a 36 hour job to take it out and put it in). After that they took a look at it, all of my pistons were scored up, my rods were shot and there was scoring in all of my bohrs. We tried to clean out the block and had no success. We bought a SHORTBLOCK FROM THE DEALER FOR $7500.00!!!!! This was the 3rd one left in the country! I also had to get a bunch of small stupid tools and ended up at about 9k in total plus 4k for labor.. All in all it was a 13k problem for me! FML!!! Oh and I forgot to tell you about the idling problem.. That was a problem with the engine, there is a small diamond ring you need that prevents it from rubbing. Hope this was helpful

[zigzag1]

Any updates on the misfires as I am experiencing similar symptoms. My car is currently awaiting diagnosis at the mechanics.

ok, the dealer seems to be unsure of what to do with it...

Had the car in there 4 times in 3 weeks and they are telling me now the motor needs pulled to do some of this stuff, still waiting on a call to hear specifics on what needs completed.

1st trip - coil packs clear codes
2nd trip - misfire cylinder 3 replace injector and clean rails, added fuel cleaner
3rd trip - clear codes, engine light back on flashing at idle, they told me to run the gas through it.
4th trip - back with flashing light, need motor pulled, something is up

i

[lagadula]

It could be camshaft adjuster ..... I'm afraid its happening to me also...