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Old 07-25-2007, 05:09 PM   #6
RexNfx400
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Re: '02 transmission issue

There is a few reasons for this. A/C ripple in the charging system is the biggest, which effects the TPS signal. Just depends on how bad the symptoms occure. You have to make certain the computer is "commanding" the in/out surge. This is done with a scanner and monitoring live data while driving and symptoms accuring. There are usually different reasons for the problem. A few different things that can fix this. A new alternator, battery/s, a RFI noise filter http://www.transbuilder.com/z-store/glaenzer-info.html , pressure washing the engine on gas models help too. There is a process of elimination to diagnose this. It fairly time comsuming. Or, otherwise you just keep throwing parts at it. The most important first step, is to see if its commanded by computer or an actual mechanical malfunction by monitoring the computer data...
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