1992 Isuzu Truck fuel injection

1992 ISUZU TRUCK

100,000 MILES • 6 CYL • 4WD • MANUAL

BRANDYWTR

MEMBER
2 POSTS

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 2:31 PM

KHLOW2008

✓Experienced Mechanic
41,814 POSTS

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 5, 2009 at 5:36 PM

BRANDYWTR

MEMBER
2 POSTS

engine type---V6 4x4 Vehicle Model---1992 Isuzu pickup truck Vehicle ID----4S1CR11ZXN4225265

Jun 6, 2009 at 8:00 AM

KHLOW2008

✓Experienced Mechanic
41,814 POSTS

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.

Jun 6, 2009 at 7:42 PM

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