2001 S idle issues / hesitation when warm

[blue62]

Originally Posted by bg305

Thank you!

I ordered one from Pelican yesterday, should arrive tomorrow. I have the car up on stands already and dumped the oil and cleaned the MAF.

Do you think the failing separator could have caused the loss of power though? I have not seen much discussion on that. I am worried i will get it all back together and still have an issue... Will know soon enough.

With the failure of your AOS and the resulting oil in your intake my guess (and it is only a guess) is that oil mist has had an ill affect on your MAF sensor. Cleaning them with a good MAF cleaner will "sometimes" fix the problem. They are actually very sensitive to very fine dirt and oil particles. so it may need replaced even if fairly new.
The MAF can be tested with a multimeter but I don't know the values that you need to see.

[Starter986]

Originally Posted by blue62

With the failure of your AOS and the resulting oil in your intake my guess (and it is only a guess) is that oil mist has had an ill affect on your MAF sensor. Cleaning them with a good MAF cleaner will "sometimes" fix the problem. They are actually very sensitive to very fine dirt and oil particles. so it may need replaced even if fairly new.
The MAF can be tested with a multimeter but I don't know the values that you need to see.

How is that mist getting upstream?

[blue62]

Originally Posted by Starter986

How is that mist getting upstream?

Well as I stated it was only a guess. But look at the condition of the throttle body butterfly. Does it look like oil dirt residue??????? or just dirt???? Not sure myself. But I believe it is upstream of the oil in the intake. So like I said I am only guessing.

[Starter986]

Originally Posted by blue62

Well as I stated it was only a guess. But look at the condition of the throttle body butterfly. Does it look like oil dirt residue??????? or just dirt???? Not sure myself. But I believe it is upstream of the oil in the intake. So like I said I am only guessing.

I don't know when last your oil was changed, or your air filter (didn't again read this entire thread) but I'd suggest it's just oil. When I purchased my car a couple years ago I chose to remove the air intake... and what I saw mirrored your "dirty" pic and with more oil. I pulled the throttle body and the asociated tubes... and they had a fair amount of oil. I, too, pulled the MAF... cleaned it up.

Cleaned it all up... put it back together and, not long thereafter... installed the OEM AOS.

Pulled off the TB about a month later (and after the new AOS install) just to double check... and all was good.

Your TB looks clean now... you'll be all good. You'll find that as more you read upon these pages you'll begin to "know" better your car. Ask questions for those answers you can't find and you'll be a Porsche mechanic in no time. Maybe not on the same level as the "Masters" who serve as outstanding resources... they Rock.

Cheers!

[bg305]

Huzzah!!! It is fixed!

I just took it for a 10+ mile drive and it was awesome!

Thanks everyone all for your help!

It was relatively straightforward getting the AOS out and in. The hardest part was getting the old ones bottom hoes off. Had to use a really long 90 degree needlenose and hook it just right and squeeze so i could pull up on the AOS and wiggle it out. I found it easiest to have the car up because i used bottom and top access. There was a nice spot on the bottom if you moved a wiring harness out of the way.

Celebratory pics of the car (from last week).

[blue62]

Originally Posted by bg305

Huzzah!!! It is fixed!

I just took it for a 10+ mile drive and it was awesome!

Thanks everyone all for your help!

It was relatively straightforward getting the AOS out and in. The hardest part was getting the old ones bottom hoes off. Had to use a really long 90 degree needlenose and hook it just right and squeeze so i could pull up on the AOS and wiggle it out. I found it easiest to have the car up because i used bottom and top access. There was a nice spot on the bottom if you moved a wiring harness out of the way.

Celebratory pics of the car (from last week).

Always great when thing come together.
Nice looking car