pakdx

Hi Everyone,
I have been lurking for a while but this is my first post.
I am having a problem with my 91 cherokee stalling on me during driving. It will just cut out while driving, sometimes it starts right back up sometimes it takes a couple minutes and one time it wouldn't start till the next day. Fuel pump is relatively new, filter is new, plugs/wires/cap are about a year old. Now I know the crankshaft posittion sensor can cause such problems. But when I tested it with my ohm meter the resistance was within spec. Is the sensor something that can "come and go" while it is on its way to failure, or should I consider it good since it tested OK when I tested it.

Its a 91 cherokee sport, 4.0 with 230k on the clock

Thanks

jeepgeek2002

not saying its a solution.. but swap a PCM from a 91 in a JY..
i ve done that with out any problems .. my friend had aZJ that would cut out and then just start back up.. ended up being the pcm.

on a 91 ..its on the side of the driverside fender under hood.
try to take it off and spray some electronics cleaner stuff in the plug..

just a suggestion
Mark

kc0dws

I got the joy of replacing the wifes CPS on her 88' today.. Test number one (checking resistance) came back fine and dandy.. Test number two (VAC from hall effect) failed..

http://www.jeepforum.com/forum/f11/w...s-test-610958/