93 ZJ ignition problem... ALL sensors changed

[Spanaway Mudder]

My bosses 93 grandcherokee is being a real PITA.... He has spent more on sensors for this damn thing then it was worth.... replaced EVERY sensor on the engine, including headgaskets n what not... its just been a lemon...

Well I was driving last week and it died on me.. wouldnt fire up for nothing... so I got it towed home and then to a shop yesturday... replaced the CPS and there ya go, it fired right up with no problems.... well, made it about 5 or so miles doen the road and there it went again with its dieing shit... coasted to a parking lot and parked it... tried it again and it fired up.. no issues right..wront.. made it a few miles in the direction of my house and again, it cut out and died.... so I pulled the negative term off the battery and let it sit for 10 mins and reset it self.... it fired up after that....


THIS morning, NOTHING!! :twak:.... He replaced the fuel pump also.... Soo now what? ECM? where can I find one of those at? and how much are they? would hate to have him buy a new one for it to not be the right fix...either way, this pile is keeping me from working....

HELP PLEASE!!

 

[OverlandZJ]

What engine?

From reading your post it sounds as if the wiring harness clips at the PCM may be loose and causing your issue (hit a bump in road etc).. this is pretty common on the earlier ZJ's from what i read.

Might want to disconnect the harness, clean and apply dilectric grease. Maybe even a few zip ties to hold it tight.

 

[87manche]

http://www.jeepforum.com/forum/f13/fixing-lazy-pcm-new-caps-writeup-501951/

have fun

if you're not competent with a soldering iron find a local ham radio neard or something.