I HAVE A 89 Trans am with a 305 I just rebuilt everything works fine except my fuel pump wont click on could there be a relay somewhere that i can change mayb a fuse?


And my Friend has a 82 with the same exact problem
would really appreaciate if someone out there can help us
his 82 has a Tpi which he just rebuilt him self and he is having the same problem as me?

Both cars have Vats but the secuirt light does not stay on and goes off. would really appreciate if someone can help us

karr

 

Fuel pump relay on the firewall on the driver side above the brake booster.

 

I changed the relay
its like the fuel pump is not gettin power?
is there a fuse in the engine bay that i can check
or is my fuel pump gone?
KARR

 

Hook a volt meter to the wires for the pump at the relay and have someone turn the key on, you should get 12 volts. If you do get 12 volts your pump is shot.

 

check ofor voltage at the relay but also check to see if the oil pressure switch is hooked up and not staying open or shorted befor you replace the relay. to check the relay just use a nine volt battery and a few wires engerzing the relay with the 9 volt battery and see if you feel/hear the relay close. hook the battery up the the coil terminals pictured on the the relay casing

 

the relay is good.
the power is all good
checked everything
can the pump be bad?

 

Describe your problem in detail. Does the pump start running after you crank the engine for a while and the oil pressure goes up? Do you get a Code 54? You might want to check out this link to a post I found my problem in:
https://www.thirdgen.org/techbb2/sho...uel+pump+relay
My problem has been narrowed down to a defective ECM and that is screwing up all of my other sensors as well. Also, try unhooking your MAF sensor if you have one to see if that's the problem. Also, I know you have checked your wiring, but there are couple of simple things you can do to make sure it works.
1. Remove your F/P relay and check to see if the contacts are clean. Occasionally the contacts get somehow greased and refuse to make proper contact.
2. Connect a fused 12VDC source between terminals A (positive/black wire) and G (red/negative wire) of your ALDL (A is upper right and G is lower left). If the wiring, relay and pump are good, you will hear the pump running when you go to the back of the car and put your ear on the carpet behind the rear seats or if you remove the gas cap maybe? (I ain't sure- I put my ear flat on the carpet behind the rear seats to listen) If everything checks out and the problem is only with a cold start, the ECM is to blame. Talk about shelling out the $$$...