Another thread of injectors not firing.
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Car: 91 Firebird/92 GTA
Engine: 9C1 350 TBI/L98 TPI
Transmission: 700R4
Axle/Gears: 3.42 Gov-Lock/3.23 Posi
Another thread of injectors not firing.
Hi, I´m helping my brother with his L98 TPI swap on his 91 RS.
The problem is the injectors are not pulsing, the car will start with starter fluid, but the injectors aren't pulsing, We checked voltage at the ECM and it is receiving 12v, the grounds have continuity on pins D6 and D1, the injector plugs all have 12v on them, all injectors ohm at 17, checked VATS and we have 2.5v at the F10 pin, the EST reference at pin D8 is receiving about 6v when cranking but varies. We also unplugged all injector and still no pulse on the noid light on any plug.
What else could be making the injectors not to fire?
The problem is the injectors are not pulsing, the car will start with starter fluid, but the injectors aren't pulsing, We checked voltage at the ECM and it is receiving 12v, the grounds have continuity on pins D6 and D1, the injector plugs all have 12v on them, all injectors ohm at 17, checked VATS and we have 2.5v at the F10 pin, the EST reference at pin D8 is receiving about 6v when cranking but varies. We also unplugged all injector and still no pulse on the noid light on any plug.
What else could be making the injectors not to fire?
