Quote:
Originally Posted by G3ko
Sounds like an idea, but could they really cause that problem without fail ?
If I'm gentle accelerating I never get any stuttering
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Yes, the MAF and/or VANOS can cause your car to hesitate on initial acceleration. And all you gotta do is pull them and clean them. Takes well under 30 minutes to accomplish if you take your time.
I drive my coil-packs to the ground and replace them when they actually fail. When they actually fail, you get misfire, motor runs rough, engine code. I didn't consider they can cause hesitation and not so sure that is true, but don't really know. What I do know is I had a hesitation as you described and it went away directly after cleaning the maf and repositioning and cleaning both vanos. Also, before that, I had already replaced all 6 coil-packs. 5 because they actually failed and the 6th just because.