AOS Related?

[funkdefino]

Ok... tested the MAF today with Durametric.

Voltage with Key in is 0.9v-1.0v with 0 Air Flow
Voltage with Engine at Idle is 1.4v

I would have to think that the MAF is OK with those readings. At least that is what I've read.

The car has started to run rough at first ignition for the day. Throaty sounding pops from the driver side intake. Engine sounds like it might stall then it catches itself. After it drives for a little bit it is fine for the rest of the day. I took the padding and rear shelf off the engine compartment so I could hear the engine better while driving.

2 things I have noticed.

• There is a wind like sound coming from the engine. I can not locate it though. tried the carb cleaner trick with no success.

• There is also a whooshing sound if you tap on the accelerator just before the engine revs.

Any ideas?

Sorry if this has been covered before. I search this forum (and others) actively, but most of the threads I have read just end without a definitive solution being found.

Lots of good recommendations though.

[funkdefino]

Sorry for resurrecting an old thread, but thought it best to post what finally fixed my 986.

"It was a vacuum leak.

- Accordion tube from AOS.

- Rubber Sleeves on intake manifold.
(1 was bad, but replaced them all.)

- Throttle Body housing was a little bent (heat?)

- Oil Filler Tube was good, but replaced it anyway.

I will update my post later... sorry for not doing so already.

BTW - MAF was/is good and AOS was/is good. I wound up not replacing those parts.