Thanks for the replies. I guess I am a bit hurting now because I never was much of an electonics tech but this old mule is trying to learn how to adapt to technology The holes on the TPS sensor are not slotted so I assume there is no adjustment, plus the shop manuel does not mention an adjustment on the TPS.
In the early 1990's I sold the big BEAR engine analyers. I could sure use one now, I think but I understand it has limits with a pre 1996 vehicle.
Anyway I guess I can check the TPS voltage using a standard clamp voltage meter/amp meter by clamping the meter's jaw around the wire lead coming from the TPS meter. If the voltage is low at the TPS then where do I check for the open circuit or poor ground at the wires coming from the ECM. Replacing the ECM did nothing?
On a pre 1996 vehicle is it really worth checking it on a engine machine. I know its not the fuel pressure, ignition wires, coils or spark plugs and you cannot test the individual fuel injectors on a engine analyser without removing the intake manafold. Also the spark control unit under the coils was bench tested to be good at a local auto parts store. Plus the crank sensor was replaced a few years ago after the engine died suddenly and would not restart.