2.3L ('83-'97) 1994 ranger 2.3 no fuel

[Shane2020]

I have a 1994 ranger 2.3. I replaced the head gasket and afterwards when I starting it fires and immediately dies. Has a new control module, new crank sensor, and another pcm. Still no fuel injector pulse

 

[tomw]

Do you have 12v on the injector leads? You should with the key ON, on both conductors. The computer will ground one, and make the injector pulse.
Ditto on the coil. There should be voltage that the computer will ground-unground to make the coil spark.
Did you check for codes? I had a MAP code, and had the same problem on a Vulcan, EEC-IV system. Map did not indicate the engine needed any fuel... so the injectors just worked until the engine had started, and then they stopped pulsing cuz no fuel needed... I thought different, so I replaced the MAP. Check your codes.
tom

 

[Shane2020]

Checked I have 12 volts plus solid ground. Engine actually starts with the spout removed.

 

[coxia]

I'm having the same problem with my 94 2.3. will run with spout disconnected. Otherwise no injector pulse.

 

[Shane2020]

I noticed also my oil sending unit stopped working even with a new sensor

 

[Shane2020]

I just replaced the mass air flow sensor and the harness for the coils and com/ injectors. Still no pulse for injectors after initial start unless the spout is removed.

 

[Shane2020]

Update injectors are firing confirmed with noid light. No gas after initial start unless spout removed. Received 542 code on pcm now.

 

[Shane2020]

Update:: problem solved today! Changed the harmonic balancer and truck fired right up. Not sure if my solution will work for anyone else or not. Just thought I'd put it out there just in case.

 

[coxia]

Did you get a new harmonic balancer or did you try a used one?

 

[Shane2020]

I went with a used one. 10.00 versus 130.00 lol.

 

[coxia]

Thanks for the reply. I think I know where one is. I'll give this a try.

 

[Shane2020]

Wouldn't hurt to double check the position of your crank sensor while you have access to it. Hope it works for you also