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Old 09-23-2019, 06:36 PM   #33
blue62
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Join Date: Aug 2018
Location: Woodland Wa
Posts: 1,300
Quote:
Originally Posted by Vtx531 View Post
I drove around with the MAF disconnected while monitoring the live data.

It seemed to run better with MAF disconnected. The short trims were going negative 20’s under acceleration and trying to balance out the +32% long trims.

When I reconnected the MAF it was adding more positive fuel to the short trims on top of the +32% long trims.

Bad MAF?
I am starting to lean toward MAF sensor issue. You could try cleaning it with a cleaner made for the purpose. I think yours is the wire type like the one in my 2000S. just don't touch the wire. clean it good let it dry. put it back in and watch your trims. see what happens,
I had a CEL on mine a year ago. I cleaned it been good ever since.
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