As some may know, I am planning on swapping out my stock jeep ecm and swapping in a 1227727. I have everything squared away for the swap but I just recently made a discovery.
The jeep TPS sensor uses the same 5 volt reference as the GM system, however the voltage range is different.
I found out when doing some other testing, that the jeep TPS works perfectly fine with the GM system, but when at WOT, it only reads 3.7 volts. It reads the proper .5v at closed throttle. It also reads just fine in the datastream but but when the jeep TB is wot, it is reading only about 85-90%tps on the datastream dash. I tried 3 different jeep tps sensors, all read identical. I'm thinking this may cause some issues? When I hook up a GM sensor, it reads 4.5v at wot. The tps % in the datastream dash reads 100% at 4v, and the voltage keeps going to 4.5 by the time its fully open.
So my next thing my be trying to find a GM (or gm voltage range) tps sensor that might fit the jeep TB. It has two screws aprox 1 5/16 apart and a "blade" of sorts that engages the tps sensor. Anyone maybe know of a GM tps that is close enough I might be able to make work?
Here is a random picture I found online showing what the jeep tps connection looks like.
http://ww2.justanswer.com/uploads/dr...4_152432_3.gif
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