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Chrysler TPS Readings


amanaman1
02-15-2011, 06:47 PM
Is it normal for a Chrysler TPS to read around 14-15% when throttle closed and only around 75% WOT (engine off and key on)? My scan tool shows all three of my 98 Grand Caravan, 2001 Neon, and 2003 T&C with the same readings as indicated. Vehicles run fine. Reason I ask is I also have a 97 Chevy Lumina that reads 0% closed and 100% WOT. Is this just a chrysler thing? Wanted some advice as it seems unlikely I've got three bad sensors on three different Chrysler vehicles all giving me the exact same bad readings. Thanks
jpb53
02-15-2011, 11:40 PM
Yes normal. Chrysler' are mostly a speed density system; no MAF ( mass air flow sensor). Your Lumina has a MAF which gives an input of the airflow into the engine. 2 completely different systems. Each work as they are designed and you don't have codes for TPS votage high so don't worry about it. System working as designed.
amanaman1
02-16-2011, 07:05 PM
Ok. I appreciate the response and thanks for the detailed explanation.

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