ok well im back and still lost as i can get ok well a couple days ago i had a fusable link go pop and now that i fixed the link im getting power to the fuel relay but not out even after i change the relay with new one hummmm. ok well i did some taeting and found that both wires to injectors are hot they got power in both what am i missing???the fusable link is inner contected with the ECC fusable link and the ECC link is good and so is relay.

HELP Please.... im lost

351W EFI

 

im clueless

 

How many wires have power at the relay when the key is on?

 

stepman well which relay? fuel or ECC both have 4 total wires and fuel relay only 3 are hot wire . ECC all checked ok i think.

 

That's what I was wondering. That's what you should have. On the 4th wire at the pump relay, you should have power for 2 or 3 seconds after the key is turned on. If you don't get power on the 4th one then the PCM isn't doing it's job. Let's see if I lose you here...Unplug the relay and you should see power on 2...the 3rd one that had power goes to the PCM, plug the relay back in and ground that 3rd wire. Does the pump run?

What I'm saying is that the PCM provides the ground for the circuit for the relay to turn on.

 

i under stand that much and all and well if i jump it relay the pump runs and the injectors arent spraying either and in that area both wires going to the in jectors show hot. aka Power

 

O.K...This isn't easy to diagnose something w/out seeing it but, we'll give it a shot. I think your PCM is shot. What happened to blow the link? Do you have a "noid light"? If not , you may want to get one. It shows weather your injectors are firing or not. If they are not spraying when the pump runs then I will assume that they are not. If the pump will not run by itself,the comp is not telling it to. If you have power to the injectors and they don't fire, it's for the same reason. The computer has to "see" the engine turning ( signal from module) before it will fire the injectors. This could be from a bad module but, I don't think that it needs to "see" a signal to turn the pump relay on. That should turn on for 2 or 3 sec's when the key is turned on.

Have you checked all of the fuses? ( had to ask) Try this....remember that wire from the relay to the comp? Unplug the relay, connect an ohm meter from the wire to ground. You should see close to zero ohms for 2 or 3 seconds then, infinate resistance. If you don't see that then check all of your grounds. If they are okay, I think you will need a computer. I really hate to condemn those without checking everything else first. Have you tried to pull any codes? Do you get 11's? There is a link here somewhere if you don't know how to do that.

 

i work for A*U*T*O*Z*O*N*E and yes i checked fuses and i dont have OBD 1 scan tool at my house . ok heres the story on how or rather when it died ok . well i was going to pick my pop up and the van shifted in to 3rd and it was doing great then just lost power like some unpluged it like it through timing but it didnt i checked that right off. so u think its the ECC .any other fusable links between the ECC and relay? im geussing a power sugre is what got me

 

Well, since you work for AZ, take your module and alternater in and test them. Make sure the module is good and the alt isn't putting out too much. Other than that, my best educated guess would be that you must've gotten a spike big enough to take out the comp. Might want to look around for shorts too.

 

control module has been tested and i did find short a hot wire (spare wire not covered) i didnt see till i removed battery fix it

 

The Van is running again not sure what it was got mad and hit it with hammer.

 

Unbeleivable! Where did you hit it? I guess I just don't use my hammers enough.

 

With the key on & engine off, both injector wires SHOULD have 12V - the EEC grounds the NON-red wire to open the injectors.

You don't need any scantool to pull EEC-IV codes - just a paperclip: read this.

 

I had a simular problem with my 88 e150 with a 302, finaly i got mad and hit the computer thing that's under the heater core.
Funny thing is that the fuel pump came on when i did that, then the van ran. now if i dont hear the pump come on when i hit the key, I just kick the computer and it runs!!

That is the computer Right? guess I should buy one huh

 

well yea new computer but for yall to know i threw the hammer and it hit the hood and then fell under the hood right in to a bunch of wires the wire (quick disconnect on the neg.) the lil thin wire i guess was not holding by much but when i fixed it it ran.