Test TPS

Reply Subscribe

Thread Tools

Search this Thread

10-24-2011, 01:29 PM

pwb

Senior Member

Thread Starter

Join Date: Mar 2011

Location: Norway

Posts: 651

Likes: 0

Received 0 Likes on 0 Posts

Year: 1993

Model: Grand Cherokee

Engine: 4.0L I6

Test TPS

Hi, could i test a TPS with a 5v source? TPS is only a variable resistor with out on the middle? I have a TPS that i want to test before i put it in my car.

Reply Like

10-24-2011, 01:58 PM

xjbeans

Senior Member

Join Date: Jul 2011

Location: New IBeria La

Posts: 597

Likes: 0

Received 0 Likes on 0 Posts

Year: 1996

Model: Cherokee

Engine: 4.0l

Unplug yours plug in the new one start the jeep and turn the piece in the middle should try to idle up and probably bog down a little because lack of air that's how i checked mine

Reply Like

10-24-2011, 11:58 PM

jnicewan

Senior Member

Join Date: Dec 2010

Location: Norman, OK

Posts: 698

Likes: 0

Received 2 Likes on 2 Posts

Year: 95

Model: Grand Cherokee

Engine: 4.0

I guess you could feed the TP sensor a 5v ref and ground and measure it. Kind of like what was said above, it would be easier to plug it into the vehicle harness to test it. The center terminal is the output reading to the PCM, it should read between .2-4.8v, never 0 or 5v. Installing the TP sensor is pretty quick and easy to do and its easier to slowly open/shut the throttle to test the voltage sweep.