Questions & Answers for: replace pcm 1993 grand cherokee

...the oxygen sensor may be getting a false reading as to how much oxygen is there....this in turn causes the pcm to add more fuel 93 Jeep grand cheorkee 5.2 L engine, no power is getting yo fuel ...

1993 jeep grand cherokee wont start I have spark, fuel, and a good charged battery.  I have alrready replaced the PCM, MAP sensor, TPS sensor, and fuel filter and fuel injectors. As well as cap, ...

replaced the pcm now it starts in dies in when the key is forward the rpm neidle jumps Most pcm, have to be reprogramed before installing. First make sure they gave you the one that will perform for ...

...grand cherokee runs poorly, check flickers on and off , computer code 53 Code 53 is an internal PCM (engine computer) failure and will require the PCM to be replaced. A rare problem to have, ...

1993 5.2 jeep grand cherokee no spark. replaced cap,rotor,sync sens,crank position sensor and coil. Still no spark. Power ctrl module has power at pin 3,9 and 19. Pins 4,5,11 and 12 are all grounded. ...

...box HOOKING BATTERY CABLES WRONG COULD SHORT OUT ALTERNATOR AND THE ECU. Fried the PCM/ECM. Try a junk yard for a replacement otherwise a mechanic will $crew you for probably $400. Easy to

1993 jeep cherokee won't start MAKE SURE DISTRIBUTOR CAP ,ROTOR, SPARKPLUGS AND WIRES, OKAY IF  ALL HAS BEEN REPLACED.IF NOT GETTING SPARK PROBLEM COULD BE IGNITION COIL FAULTY, ASD RELAY ...

...1993 jeep grand cherokee idles and runs rough after it has warmed up! i replaced the distributor, cap, rotor button, plugs and wires and checked to see if i hsd fuel pressure coming from tank! by ...

1993 jeep grand cherokee V8 runs and drives but will die sometimes while im driving but will start back up sometimes. maybe its the computer but not sure? Ok my jeep started dieing while im driving ...

...hopefully come up with a solution? Thank you? Disconnect your battery and replace the PCM with one that doesn't have a security function. Do not buy this from Auto Zone, you will regret