Please help with my TPS issue
Thread Starter
Junior Member
Joined: Dec 2011
Posts: 39
Likes: 0
From: San Diego CA
Year: 1992
Model: Cherokee
Engine: 4.0

http://s199.photobucket.com/user/scu...627dc.mp4.html
A little background 92 Cherokee XJ 106xxx 3k on new motor 6 inch lift stock gearing.
So I was out wheeling last week and my check engine light came on and it started sputtering like in the video. It's OBD1 so I did the key thing and came up with a code 24 bad TPS. I stopped at Autozone on the way home and picked up a new TPS. I installed it but the problem continued so I replaced it thanks to the lifetime warranty but that didn't work either. I ended up getting one from Jeep but that didn't help either. I did the refresh on all the grounds and even ran new grounds to all the locations under the hood.
Below are the voltages I got when checking them.
The original one
Constant 5.02 vdc
idle .657
Wot 3.715
Autozone one
constant 5.019 vdc
idle .629
wot 3.633
Jeep one
Constant 5.02
idle .706
wot 3.743
Can all of them be bad?
Is there something else I should be checking?
I really need to get this thing running before this weekend any help would be appreciated. Sorry for the crappy vid.
Mark
Last edited by scubamark13; Oct 15, 2013 at 11:31 AM.
Thread Starter
Junior Member
Joined: Dec 2011
Posts: 39
Likes: 0
From: San Diego CA
Year: 1992
Model: Cherokee
Engine: 4.0
It's FIXED! Turns out the purple and white power wire had a short or bad spot. The wire is the power wire for the MAP, TPS and one other sensor, the problem was where the wires split. I just cut out the bad sections and put in some new wire and its running perfect again.
Thanks everyone for your help,
Mark
Thanks everyone for your help,
Mark
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