TPS reading is unstable.

RotaryProphet · 06-06-2010, 08:37 AM

You may also try replacing the TPS with a pair of resistors; measure the resistance between +5v and signal, and between ground and signal, and pick up some resistors in that ballpark. Then just stick them on the wires. If your signal is stable, you have a TPS issue. If it's still wonky, then shut the engine off. If it's -still- wonky, it's your wiring or the circuit in the ECU. If it stabilizes with the engine off, it's likely interference.

06-06-2010, 08:37 AM	#4
RotaryProphet Rotary Fanatic Join Date: Sep 2008 Posts: 147 Rep Power: 18	You may also try replacing the TPS with a pair of resistors; measure the resistance between +5v and signal, and between ground and signal, and pick up some resistors in that ballpark. Then just stick them on the wires. If your signal is stable, you have a TPS issue. If it's still wonky, then shut the engine off. If it's -still- wonky, it's your wiring or the circuit in the ECU. If it stabilizes with the engine off, it's likely interference.