Throttle Jumpy

[deliriousga]

Having a brain fart. IACV=???

[psuball1]

My 2.7 has the same issue. I swapped out the MAF but it did not help. I checked for vacum leaks and found nothing. Now I am left with replacing O2 sensors and/or the throttle regulator. Does ANYONE have any experience doing any of these repairs???

[slogans7]

Idle Control Valve, I think.

Adam - Maybe something as simple as lubricant on the pedal mechanism?

Actually I'm having a similar problem on my Tip. Shifting manually, in 4th and 5th, I often get a noticable power surge around 3K or a bit under. It almost feels like it's downshifting although it isn't. Odd.

[KRZTACO]

[QUOTE=deliriousga]Having a brain fart. IACV=???[/QUOTE

I.dle

A.ctuator

C.ontrol

V.alve

http://www.pca.org/tech/tech_qa_question.asp?id={2FE2DB7F-066E-44BB-86B6-F94296717EDC}

[deliriousga]

Originally Posted by KRZTACO

I.dle

A.ctuator

C.ontrol

V.alve

A little info (and question) about the IACV. I was recently having a similar problem in the 928 so I started searching the forum for that car to see if I could expect a new MAF, O2 Sensor, or what. Turns out it's the same problem KRZTACO had, but very easy to fix. Several threads on the forum had people (including techs who work on our cars) who popped open the intake hose that connects to the IACV and sprayed WD40 in it. They let it sit for 5+ minutes then reconnected the hose and cranked her up. If it didn't take care of it, they repeated 2-3 times. I did this today and voila, the idle is smooth as silk. Two minutes and $.05 of WD40 was a sweet fix.

So the question is, can this be done with the Boxster? Is there an intake hose like this that is accessible and directly connected to the IACV?

Thanks!