Yep. the car is only running from the gas it gets from the cold start injector

 

It may not be the ECU. Is the CEL illuminating when you turn the key to ignition?

 

yep...

 

Good. Then, try shorting the two diagnostic terminals labeled FP and B+ located in the diagnostic port under the hood. Use a paper clip or stiff wire. This bypasses the fuel pump relay and AFM fuel pump switch circuits. See if it will run then.

 

tested,nothing tested the relays everything good.

 

the only cold start injector is working

 

Test the distributor, yet? If the ECU doesn't get crank rotation feedback, it won't fire the injectors.

 

the truck start, but hesitate like crazy

 

if the distributor doesn't work will the truck have any spark?

 

I understand that. But, if the Ne and/or G1 signals are lost to the ECU at any point upon ignition or running, then the ECU injector driver's will not operate.

 

because it got a pretty nice one

 

ok how do you test the distributor ?

 

the only way I know of testing the distributor is taking the cap off and turning the key... see if the rotor spins.

UPDATE: Apparently i got a WHOLE new VAFM. I got it at whole sale cost for 182.63. It wasn't just the clip.

 

sweet, I am glad it workout for you,

the distributor turns.

 

or spins..

 

subscribed

 

That's not the way to test the distributor. Here's a good start.....

http://personal.utulsa.edu/~nathan-b...12onvehicl.pdf

You're looking to test the pick up coil/signal generator.

 

Ah-ha! I thought so. Anyway, good for you.

 

THANKS...I will test it tomorrow

 

Doesn't the "Pulse" from the Distributor activate the Igniter module and then the igniter activate the coil that send electricity to the spark plugs?