1992 Isuzu Truck fuel injection

1992 ISUZU TRUCK
100,000 MILES • 6 CYL • 4WD • MANUAL
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BRANDYWTR
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My 1992 isuzu truck would at times start fine and at times would turn over but would not start . i left it sit idriveway 6 months + and now wont start at all . after checking a few thing s i found out im not getting voltage to my fuel injecters when i i turn motor over , so what would cause this ?i have already replaced the computer. Its a TBI Fuel injection unit.
Jun 5, 2009 at 9:31 PM
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KHLOW2008
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Hi brandywtr,

Thank you for the donation.

I need the following info to get the correct diagnostic data to assist in solving this problem.

1. Engine type.
2. Vehicle model.
3. Vehicle Identiication Number.
Jun 6, 2009 at 12:36 AM
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BRANDYWTR
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engine type---V6 4x4 Vehicle Model---1992 Isuzu pickup truck Vehicle ID----4S1CR11ZXN4225265
Jun 6, 2009 at 3:00 PM
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KHLOW2008
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At the injector there are 2 wires, 1 for each injector that receives power supply from the ECM relay. From ECM relay wire color is Light Green/Black and at injector it is branched into Light Green/Black and black/Blue. Test the ECM relay and its power supply. since problem is intermittent, I would suspect the relay or its circuit to be faulty. Item # 9 is the ECM relay.


https://www.2carpros.com/forum/automotive_pictures/192750_CompEng92Isuzu6cyl_1.jpg

Jun 7, 2009 at 2:42 AM