Paulieflyer2

I have a 90 cherokee 4.0 I got a new TPS does anyone know how to set them ther is a lot of adjustment on it

mike37

purity sure you don't need to adjust on a 90

BuckB91XJ

http://autorepair.about.com/library/faqs/bl232i.htm

This link has your XJ TPS adjustment procedures.

xj4life2

Yes there is adjustment needed , the link above is perfect info.... run with it

mike37

on a 90 ???

i was under the impression that only 89 and lower years needed adjustment

COSXJFAN

90s are still the Renny system and need adjustment.

winston427

I love it when there is a thread on some thing I am getting ready to tackle. Have to change the TPS on the 89 I picked up last week.

XJ?2010

nevermind

mike37

what year do you stop needing adjustment my 91 had no adjustment

Paulieflyer2

What does the TPS do,how will it affect the way the engine runs

toxic1212

it tells your tranny when to upshift
in short

Tankerblade

What toxic said. If it doesnt work right it wont shift properly and it has the possibility of it not shifting at all. Had out TPS sensor go out on our dodge on a 14hr roadtrip...that was great.

pbudzy

make sure your math is good...if your constand ohm reading is 4.69 then multply that (whatever your constant measures negative to the blacvk wire and positive to the grey wire) by 83% or .83 ...mine ended up being 3.892 which i rounded to 3.89 and the truck runs incredibly better than ever before...mine is an 89 so yours should be real close to my readings...good luck and let us kow what you find.

BigOrangeXJ

sorry to bring this thread back from the dead, but I have an '88 XJ that my friends uncle did a stroker swap on 2 years ago and has been sitting since, because had issues idling. i did a '99 intake manifold swap at the same time and it may have a '99 TPS on it. could this be the reason it idles/dies cuz Renix ECU and '99 TPS don't speak same language?

pbudzy

I beleive you may want to look into the CPS threads on the forum...why did you put a 99 on it???