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Old 2007-06-28, 02:43 PM   #25
Dean
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Real Name: Dean
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Deal, did somebody say Deal? Oh, Dean, yeah that's me.
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Without a wideband, logging is mostly useless. It will tell you how bad it is in closed loop, but not the all important open loop which is where you can kill an engine.

If the MAF voltage is telling the ECU there is less air than there actually is, which is likely with an after market CAI, you are looking at a lean condition in open loop which is what makes things go boom!

I spent many hours of logging trims and my wideband data to tweak my intake calibration to get my Injen sorted out pretty well.

If you insist on keeping the CAI, get a tune for it.
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