PICS: possible major problem? MAF harness
#1
PICS: possible major problem? MAF harness
Short story...Did the MAF test, audi a4 1.8t 2001 ran 150% better with it disconnected. Bought a new MAF, plugged it in, ran like crap again.
Was just about to pull some numbers on the vag com when i was double checking the harness connected to the MAF. I noticed there are 5 wire taps at the head of the sensor connector. I have 4 connected in and i looked at the top of the cap and i saw a black wire that was disconnected? any ideas if this is wrong/right/correct/solution to my problem?
Was just about to pull some numbers on the vag com when i was double checking the harness connected to the MAF. I noticed there are 5 wire taps at the head of the sensor connector. I have 4 connected in and i looked at the top of the cap and i saw a black wire that was disconnected? any ideas if this is wrong/right/correct/solution to my problem?
#2
Thats normal i believe there's only 4 wires but there room for 5. The car will run better without a maf sensor because it has the MAP sensnor also (i think im right about that). Either way its hard to tell your MAF is bad because my car ran 150% with it unplugged and my MAF was brand new. I actually had some vacuum leaks and PCV valve issues. My car ran like complete **** before i adressed those problems and i had no check engine lights (only when i unplugged the MAF)
#3
why would it run so much better with the MAF unplugged if you still have leaks? im assuming the same could be true for me. I have a new MAF and it still runs like crap and shoots a CEL. SECONDARY AIR INJECTION PUMP or something like that. i havnt pulled it since last month.
did you just look around for the leaks or did you test it somehow? my boost gauge spikes at 15 psi and holds it.....
did you just look around for the leaks or did you test it somehow? my boost gauge spikes at 15 psi and holds it.....
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