TPS reading wierd ohm values. - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Kaneda774 · 08-06-2007, 06:37 PM

Don't know if this helps but in working with Megasquirt, a DIY fuel injection computer, the TPS was wired as such

Pin 1 - 5 v ref
Pin 2 - Signal
Pin 3 - Ground

Should be pretty easy to isolate the problem, if you check for continuity between ground and one of the outer wires, the one with continuity is your ground, the other is Ref and the middle should always be signal. Take your reading with ground going to common on your multi-meter and signal going into the other lead. If it's still screwed up time for another TPS,
Check your wiring its probably just mixed up.

08-06-2007, 06:37 PM	#7
Kaneda774 Join Date: Apr 2007 Location: Lyman, Maine Age: 41 Posts: 20 Trader Rating: (0) Feedback Score: 0 reviews	Don't know if this helps but in working with Megasquirt, a DIY fuel injection computer, the TPS was wired as such Pin 1 - 5 v ref Pin 2 - Signal Pin 3 - Ground Should be pretty easy to isolate the problem, if you check for continuity between ground and one of the outer wires, the one with continuity is your ground, the other is Ref and the middle should always be signal. Take your reading with ground going to common on your multi-meter and signal going into the other lead. If it's still screwed up time for another TPS, Check your wiring its probably just mixed up.