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- - TPS voltage variation (https://www.thirdgen.org/forums/electronics/12939-tps-voltage-variation.html)

89FormulaRoadRacer

08-22-2001 04:05 PM

TPS voltage variation

My 89 Formula has a difference in voltage at the TPS and in what the computer sees. When a VOM is connected directly to the TPS I will see 4.5v at WOT but when reading it with my AutoXray thru the ALDL I only see 3.7v. Any ideas?

deadbird

08-22-2001 04:21 PM

Voltage loss through the wiring maybe?
Have you tried taking a measurement at the ECM ?

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