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Detonation fixed!

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Old Jun 22, 2007 | 09:45 AM
  #1  
Fire-formula 93's Avatar
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From: St. Peters, MO
Default Detonation fixed!

I have had pretty bad ping at high rpm wot operation. I thought that since the maf was descreened it was leaning the mixture at WOT or something. So I have held off until I could afford a tune for it.

Then I got the bright idea to clean the MAF with some electrical contact cleaner from radio shack. I used a q-tip to carefully clean the sensors which were black. Now, no more detonation, even with WOT runs third to fifth gear yesterday at almost 90*. If I would try that before, it would sound like popcorn.
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Old Jun 22, 2007 | 12:21 PM
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Interesting. Did you have a CEL on?

Since it's gotten hot, mine is pinging badly.
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Old Jun 22, 2007 | 03:48 PM
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My SES light is on but it is from gutting my cats. Its pretty hot today and its not pinging at all. Hopefully it will help gas mileage too.
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Old Sep 25, 2007 | 07:38 PM
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Sweet dude I think that will solve my prob. Shoulda thought of it first!!!
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Old Sep 26, 2007 | 01:53 PM
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I'm trying it. Just seafoamed last weekend and I'm still pinging.
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Old Sep 26, 2007 | 07:35 PM
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The MAF is one of the first things to check if you have detonation. If it's dirty it is showing less air to the computer than is actually coming in, which makes it run lean.
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