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93 Isuzu Trooper, ecm issues Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> Automotive Wiring and Electrical southbound New User Mar 8, 2012, 6:04 PM Post #1 of 4 (3884 views) 93 Isuzu Trooper, ecm issues Sign In Hey Y'all! I have a 1993 Isuzu Trooper sohc 3.2 man.trans. Great vehicle, my third Trooper!! So this is my problem. The vehicle was running fine when I drove it to work, then at lunchtime, I went to drive it, and it would barely run.it would start and idle roughly, and as I gave it gas, it would bog down. I believe was in what is called limp in or back up mode. I drove it to a friends shop, where it under went several tests to determine the issue. Timing was fine, compression was fine, the Cat was not clogged up. he hooked up the scanner, and it said possible ecm failure.So, after carquest told me it was a $280.00 R&R, I located a used match on Ebay. today I installed it and still the same thing. So three weeks later, I'm still at square one. The vehicle is now at my house, as the mechanic, though good, is too busy swapping parts on other cars to do alot of diagnostic fiddling with it. not to mention I'm not exactly flush with money!So assuming the ECM is good, what else could it be? Fuel pump going bad? I 'm not sure he checked the fuel pressure. A relay or some other sensor that sends a signal to the ECM that is causing it go into limp in mode? Bad ground? broken wire? LOL, I know how to check all this stuff, but I'm hoping for a magic bullet here! Help a fellow out!! Thanks !!!! Discretesignals Ultimate Carjunky / Moderator Mar 8, 2012, 6:52 PM Post #2 of 4 (3840 views) Re: 93 Isuzu Trooper, ecm issues Sign In Is this a DOHC or a SOHC? Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved. southbound New User Mar 9, 2012, 12:00 PM Post #3 of 4 (3802 views) Re: 93 Isuzu Trooper, ecm issues Sign In it's a single overhead cam (sohc). it just got dumped in my drivrway by the flatbed, too.! Discretesignals Ultimate Carjunky / Moderator Mar 9, 2012, 5:35 PM Post #4 of 4 (3790 views) Re: 93 Isuzu Trooper, ecm issues Sign In Is that ECM code still popping up? What is the code number? Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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