Fuel injector troubleshooting

This sounds like the the crankshaft sensor is not working correctly. Here is the location so you can replace it to see what happens. Check out the diagrams (below). Please let us know what you find.

Couple things. We need to back up and make sure the fuel is the reason for the no start. I attached a flow chart that will take us through the basics then direct us to the next step.

The reason we need to do that is because what you are doing is grounding the injector and this is what makes it spray. These are what is called ground side control. In other words, the PCM supplies power to the injectors all the time but when it wants to fire one it grounds the circuit and it completes the circuit. This means that when you ground the injector, you are taking the place of the ECM. So I suspect we either have a wiring issue or more likely an ECM/PCM issue. However, if there is something else like the crank sensor is telling the PCM not to fire the injectors then replacing the ECM will not fix it. This is why we need to run through this test to see what we have.

12 means the system is not finding any faults. With that being said the computer does not have as code telling you it is not working correctly. I would try a used unit to see what happens. Here is the location:

When replacing a production Computer with a service Computer, transfer the broadcast code and production number from the production unit to the service unit. Also during replacement, the PROM, CALPACK, and if equipped, the MEMCAL must be removed from the Computer being replaced and transferred to the new unit. Refer to PROM, CALPACK and MEMCAL in this section for replacement procedures.

1. Disconnect battery ground cable.
2. Then disconnect two computer electrical connectors.
3. Remove computer mounting hardware.
4. Remove computer from passenger compartment.
5. Reverse procedure to install.

Check out the diagrams (below). Please let us know what happens.