Having problems with your 1987 Chevrolet S-10 Pickup ?

1987 Chevy S10 TBI 4cyl 2.5 L will not run. I changed a weak fuel pump and i am now getting good pressure. I swapped ecm's, changed fuel pressure switch, oil pressure switch, distrib, rotor, electronic piece on distrib, map sensor and o2 regulator. I check fuel pressure to the throttle bottle and it is gettting fuel. For some reason the fuel injector is not spraying fuel. Engine runs fine if spraying starter fluid inside but cuts off after u stop spraying.

Posted / edited by AnonymousUser on : 15-08-2022

Answers :

Check the injector for 12v on one wire. if good check the other wire for a ground witth the key on. The ground wire pulses from the ECM If you dont have 12v from one wire to the other but you have 12v from one wire to battery ground then be sure the ground wire is good to the computer. If you don't have 12 v at any time check for open hot wire or bad fuse. ADD 12v to the hot wire at the injector. DO NOT add to the wrong wire or you will fry the computer
Repair Help & Product Troubleshooting for 1987 Chevrolet S-10 Pickup

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