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I am looking for a front passenger power window motor in good working condition - can't tell from your pictures if the Jeep's got power windows or not.
Chris
Hey All:
I am pretty sure I have narrowed the problem down to a few loose wires right at the ECU connectors. I pulled the ECU down from under the dash and wiggled the wires right at the connectors - the Jeep started right up. When I move the ECU around or wiggle the wires again - the Jeep...
Thanks everyone for the responses.
I am almost positive that I found the problem.
Last night, I pulled the ECU back down from under the dash and ran continuity tests on the harness for all the major players (CPS, CMS, Injectors, etc) - didn't find a problem. Just for the hell of it, I plugged...
Actually all the injectors are fed from one single power feed, but each injector has its own ground wire going back to the ECU. The ECU completes the ground to fire the injector.
Or so I've read.
I've already replaced the CMS, CPS, and ECU.
Guess I'm going to have to start running continuity...
Getting good fuel pressure.
Getting good spark.
Replaced ECU
Everything appears to be in good working order, except for the injectors - they are not getting their signals to open.
Chris
CMP? Also known as the Sync Signal Generator, right?
I thought that CPS finds the signal to fire the injector at the right time, and the CMP "matches up" the CPS signal to each injector - it finds #1 cylinder for the ECU. Also, I read in my FSM that ECU will randomly pick an injector to be...
Hey All:
My 90 Limited has been a planter in my driveway for about 2 weeks now.
Finally discovered that the injectors are not firing.
Replaced the:
CPS - reading 240 Ohms (key off) and 3.5 VDC (engine cranking)
ECU
Distributor
Still nothing.
Reading through a whole bunch of posts here, I...
Hey All:
I've got a 90 Limited (RENIX) with an unusual problem - sometimes it'll start, sometimes it won't - it'll just crank and crank until I kill the battery.
Now, it's not unusual for an older XJ to have a starting problem - but this is: When the Jeep won't start, if I pull the fuel pump...