So I noticed my gas milage going down, and whenever I let my foot off the pedal the car would want to come to idle very quickly. It was sorta annoying. When coasting through a parking lot it seemed like I was either speeding up or slowing down, accelerating or decellerating, but never maintaining speed. Either way it's fixed, cheaply.

My maf may have been contaminated by fuel durring the install and testing of my nitrous kit, or my IAC could have been stuck. Either way, the car was not throwing codes and OBD-II diagnostics turned up nothing out of the ordinary. My car would idle at 850RPM and everything seemed normal except my car wouldn't hold a speed, and wanted to decellerate quickly when i let go of the throttle.

I lubricated my IAC with some high temp silicone lube($5 at advanced auto parts) and used some contact cleaner($5 at advanced) on my MAF. It worked great.

I chose contact cleaner because it's the same stuff, but if you buy MAF cleaner it costs about $2 more for the branding.

My car runs like new again. fing02.gif

 

good idea man, definetely something to keep clean !! im going to do that tonight too !! shes been idling kinda rough, even after new plugs wires and oil. hmm ??

 

for me, rough idle was fixed with a $3 PCV valve.

My car was not idling rough at all before I did this.

 

nopenot for me, changed that too about 6 k ago. i bet ya its the IAC

 

Dirty MAF = Too much oil in your CAI Air Filter, or your filter just sucks.

 

AEM dryflow paper filters for the win.

 

Agreed. Only filters I'll use again.

 

<div class='quotetop'>QUOTE (REDZMAN @ May 17 2007, 01:43 PM) <{POST_SNAPBACK}></div><div class='quotemain'>Dirty MAF = Too much oil in your CAI Air Filter, or your filter just sucks.</div>


I really think it was from fogging my Nitrous a few times without running the car. It is possible that it came from my filter, but it happened gradually and recently and I last cleaned/oiled my air filter 4,000 miles ago.

Normally, because Its a problem I think I caused with my special setup, I wouldn't post this. But, I remembered a thread where someone said they couldn't maintain a speed in a parking lot, and they had a problem with decelerating quickly. Although it happened with my wet Nitrous setup, it could happen with a number of things, such as excessive oil leaking down from breather into intake durring off-time and then breathed in by engine durring run-time, excessive oil on CAI filter would cause it definately. Any kind of contaminate on the MAF will cause problems with it reading the proper air flow basically.

It would be nice if we could get a volume monitor rather then a MAF sensor.

 

I did this today too, I also hit the iac with the contact cleaner, do I have to silicone lube it or will it be fine? by the way, the car drives mint now fing02.gif

 

the AEM dryflow is the shit !! been using it from 60k miles to now 99k miles on the odometer, and its much better than the oily messy filter.

I gave my friend my K and N recharge kit the other day, and let him wash his filter, at my place, and i just watched thinking to myself, man, what a pain in the ass to do all that work !! LOL