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Ok I'm just going to take it to the dealer, can't figure out what it is.

Ok it is not the tps, I used two different known good parts and still has the same issue. Both parts were oem jeep parts.

The weird thing it's mine is acting up only when cold even thigh the sensor tests fine

Bump

One thing I did find is when checking the voltage through the wires when not connected to the tps the middle wire has 4.4 volts coming through it. Could that point to an issue with the the pcm?

It is the echlin line. When back probing the connection I'm finding that the tps has the correct volts with no flat spots

Hey guys, I need some help. I have a 1998 XJ with a 4.0. It isn't idling correctly, missing, and not wanting to shift correctly. It is throwing a P0122 code for TPS voltage low. I've tried two different TPS units from Napa and cleaned the throttle body. The problem isn't all the time but...

no ideas? I've tried replacing the tps and map sensor as well, but there was no change.

Hi Guys, I picked up a 98 Cherokee a couple months ago, and after having it about a month had an electrical fire which fried part of the harness. I replaced the entire harness, engine and behind the dash. Now I'm having an issue where it won't idle, under light/moderate acceleration it...