I have no spark and no power to the fuel pump relay. Is it the ecm or? It also turns over very fast like no compression. It does have 240K miles on it though.

 

Take off the distributor cap. Try cranking. If the rotor doesn't spin, the cam gears have probably failed. The phenolic (plastic) gear on the cam does eventually fail.

 

The rotor turns as it should. Tried a different ecm, no change. Tried diff fuel pump relay, no change.

 

Going to test for 12V to the coil and check for the pulse when cranking. I guess I can hot wire the fuel pump relay and the coil to hear it run? Was given the truck, not sure if I want it at my house yet or?

 

The fuel pump relay gets it power from the fuse link at the starter relay for its common pin over the yellow wire.
The fuel pump relay gets it power from the EEC Power relay for its coil over the red wire.
No power from the ecm to the fuel pump.
The ecm only grounds the fuel pump coil.

Attachment 285111

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I used a test light on the coil, I have steady 12 V in the one wire connection (2) and also with the two wire connection (1) on the coil. When cranking the engine shouldn't the light blink on the two wire (1) connector?
Also I can hear the two relays that are on the inner fender by the master cylinder clicking but I don't hear the fuel pump.

 

The dark green wire with a yellow stripe (1) should blink while cranking and the red wire with a light green stripe (2) should have power on it any time the key is in start or run position.

 

It doesn't blink while cranking, just has a steady 12 volts. The distributor in it is new so the previous owner probably got as far as I have, determined it was the ign module in the distributor, replaced the distributor, and it didn't fix it. I do have fuel pressure now at the rail so all I need is spark.

 

The Ignition module (ICM) is mounted on the outside of the Distributor. The PIP sensor is in side the Distributor along with the ground for the Ignition system.
Are you saying both the ICM and the PIP sensor are new along with a rotating distributor as it cranks?



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Yes, that is correct.

 

Then pull the SPOUT out.
Then crank it and see if you get spark as it cranks.
The SPOUT shorting bar should be near the base of the distributor.



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Ok, will do. Can you explain the SPOUT and its purpose?
thanks

 

Spark Output (SPOUT): Desired spark timing information sent from the EEC to the ICM.
With the SPOUT out of the circuit the engine will run on base timing.
The SPOUT signal, short for SPark OUTput, is a digital signal generated by the EEC-IV processor providing spark angle information to the TFI-IV module. The SPOUT signal on the push start system controls only the firing of the coil. The falling edge of the SPOUT signal is ignored.
In the case that the SPOUT signal line opens from the EEC-IV processor, the TFI-IV module will use the PIP signal to fire the coil. This results in a fixed spark angle of and fixed dwell.

 

understood, thanks!

 

I pulled the Spout plug, no change
I pulled the plug on the condenser, no change
Still have a steady 12 volts on both sides of the coil and no blinking when turning the engine over on the side with two wires.