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91 Cherokee keeps blowing engine control 30A fuse, under hood PDC

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Old 04-01-2018, 08:00 AM
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Year: 1991
Model: Cherokee(XJ)
Engine: 4.0 HO
Default 91 Cherokee keeps blowing engine control 30A fuse, under hood PDC

Hello all I'm new to the forums here, I've had my jeep a very long time since high school actually. And just randomly driving to a buddies the other day it cut out while driving and I found in the under hood power distribution center a green 30A fuse was blown. From what I understand this is the engine control fuse. I've replaced the 02 sensor, replaced the ballast resistor, replaced the ECU, replaced the starter solenoid, replaced the fuel pump relay, Auto-shut down relay, and the relay right near the battery which I believe to be the starter relay. I cut the wires to the fuel pump and when cranking over it still blows the fuse, which leads me to believe it's not the pump. I've pulled almost all of the wire loom off under the hood to check for a dead short in wiring and I haven't found a single thing. I'm really really stumped at this point. I haven't met very many things I can't fix but I'm $300 deep in this and haven't gotten anywhere in the past three weeks. If anyone can help please let me know!! Thank you
-Dylan

Last edited by CaptainBlack; 04-01-2018 at 08:02 AM.
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