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Q: When should Jeep Wrangler ecu be replaced?
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What is the ECU in a Jeep Wrangler?

Engine control unit. (engine computer).


Does a 1990 Jeep Wrangler 2.5 litter have a ecu?

Yes. Remove your radio and look on top of the heater box. Should see a silver box.


When the 1995 jeep wrangler warms up I will not get a spark from the starter coil. The coil has been replaced.?

Have to wait for it to cool off? Probably ECU. Located behind washer fluid on firewall. GL


Where is the coolant temp sensor in a 1995 jeep wrangler yj?

The "Coolant Sensor", for the ECU, is right next to the water neck at the front of the engine. the "Coolant sender", for the temperature guage, should be on the back of the head at the rear of the engine!


Can a 2004 6 cylinder 4.0 motor from a Jeep Wrangler fit in a 1988 Jeep Wrangler?

absolutely not. not without some kind of mods and all of the wiring harnesses and computers. also the tranny would have to go with the motor as the ECU must connect to both the tranny and engine to function properly.


Where is the ECU on a 1999 Jeep Cherokee classic?

The ECU on your Cherokee should be located on the inner fender under your hood on the driver side.


How do you fix a blown a Fuel System ECU Maxie fuse on a 95 jeep wrangler?

under the hood theres the fuse box near the battery open it the ecu is number 1 i think not sure check manual disconnect battery then pull fuse replace


On a 1990 Jeep Wrangler 25ltr manual transmission the fly wheel was missing how do you correctly install the wheel with the engine at top dead center so the ECU picks up the correct timing?

How does a flywheel just go missing? The flywheel should only bolt on in one orientation.


Can you help spark condition car died no signs of anything replaced icm replaced blown cap in ecu then blew the new one?

replace ECU with identical ECU


Will a 91 Jeep Cherokee ecu work in a 87 Jeep Cherokee both are 4.0?

no.


Where is the ecu on a 2001 jeep?

it is by airintake on driver side


How do you remove ecu from a jeep yj?

Remove bevel cover then glove box. ECU sits directly behind it.