Hey guys i need some help.

How do you hotwire the fuel pump to see if its working?

Replaced crank sensor, relays, pcm, battery, fuses.

Thanks

 

Do you have an FSM? I would assume that you gain access to the pump and then apply 12v to the power in (sorry, at work right now so I don't know the pumps pin-out) and see if the pump primes, if not then you're pump is bad if it does then your relay/wiring is bad.

 

No I have a clymers, not very good.

I jumped the orange and black wire to no avail. The other three are small and I am assuming they go to the sending unit, but not sure.

Thanks

 

Remove the Fuel Pump relay.
Insert a jumper wire into the contacts that correspond to relay pin numbers 30 and 87.
Turn the key on/engine off
Listen for the pump

 

And make sure you've got a good fuse in place for the fuel pump as well.

 

Thanks I will check this out! And the relay jumper.

 

current must be confirmed at the pump wiring you can bypass all you want if theres no current at the relay/fuse your not getting anywhere

 

fused jumper wire in fuel pump relay.

Don't need key on!

 

First off thanks guys.

Now I jumped it and no pump action.

Could the auto shut down relay keep the pump from working?

Thanks

 

There is no safety switch/relays on the grands from what I read.

 

Mine has an auto shutdown relay that cuts power to the fuel pump when it senses trouble. Manual says through the can or crank sensor or a faulty pcm.

 

The ASD relay sends power to the primary side of the fuel pump relay. If you jumped 30 & 27 you jumped the Secondary side of the relay bypassing the ASD. You need to go back to the fuel pump and check for B+ and Ground. Also with 30 and 27 jumped bang on the fuel tank. If the pump starts to run then replace it

 

You guys are great!

I will check it in the morning.

 

Thanks for the quick help guys. Beating on the tank while relay jumped confirmed the fuel pump is bad.