91 sunbird 2.0L fuel pump relay

[djmherrera]

i was wondering where the fuel pump relay is guys? i bought one but it looks like the same on that s my ac relay as well. i know my alternator and ac are connected to it so i didnt know if they were the same one. thanks guys for your info

 

[djmherrera]

i also noticed that my fuel pump fuse had blown i switched it out and my car started for a biy but died as i tried to take off. didnt know if thats a sign the pump is out its self. but im lost

 

[92 Sunbird LE]

If it keeps blowing fuses ,you may have a grounded out fuel pump power wire, another person had the same problem in his 91 and ran a new wire to a toggle switch on the dash to bypass the factory wire .

Like I stated before in your other post, common problem on 91 Sunbirds.

Pic below with the 3 relays circled in yellow.... the one that has a purple wire is the relay for the pump.

Doug in P.R.

 

[92 Sunbird LE]

Other post on the problem:

http://pontiacforum.com/pontiac/showthread.php?t=28036

Doug in P.R.

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[djmherrera]

so replaced the fuel pump relay. car started. was working well for a bit but after driving a bit it started puttering. idk if that pertains to resolving with directly connecting to ignition.

 

[melsg5]

have you done a fuel pressure test?

 

[92 Sunbird LE]

Test the pressure first before you go through all that trouble, you should be able to rent a setup like this from the auto parts store . It goes in place of the fuel filter. Look for 9-13 PSI

I now know how to test mine if I need to even though its MPFI with no port. ( learn something new every day)

Thanks Mel, didnt know they had this kind of setup.

http://www.howstuffinmycarworks.com/GM_TBI_fuel_pressure.html

Doug in P.R.