Fuel Pump relay

jcase350 · #1 06-07-2006, 06:14 PM

I have a 1990 camaro Iroc-z TPI with a 350. I am having problems getting it started and think it's either the fuel pump or the fuel pump relay. Problem is i don't know which relay is for the fuel pump. Does anyone know or know how to find the info I need. Thanks

Dyno247365 · #2 06-07-2006, 09:26 PM

Quote:

Originally Posted by jcase350

I have a 1990 camaro Iroc-z TPI with a 350. I am having problems getting it started and think it's either the fuel pump or the fuel pump relay. Problem is i don't know which relay is for the fuel pump. Does anyone know or know how to find the info I need. Thanks

On my 87, the fuel pump relay is in the upper righthand corner, there's 3 relays and it's the middle one. The dead giveaway is that the fuel pump relay has a rubber part so that you can flex the relay back and forth to remove it.

AFI 05 · #3 06-07-2006, 09:41 PM

when you turn the ignition.. do you hear the fuel pump priming..? it should do it for like 2-3 seconds... if you DO hear it.. then neither the pump nor the relay are bad.. but if you dont hear a thing, it could be either or.

Dyno247365 · #4 06-07-2006, 09:46 PM

Quote:

Originally Posted by AFI 05

when you turn the ignition.. do you hear the fuel pump priming..? it should do it for like 2-3 seconds... if you DO hear it.. then neither the pump nor the relay are bad.. but if you dont hear a thing, it could be either or.

The FP relay could be failing and it's better to replace it with a new one.

AFI 05 · #5 06-07-2006, 09:47 PM

for my car.. oh shit we have the same car.. well anyway.. the fuel pump relay is the relay to the far left of the 3 if your looking at the engine bay from the front of the car.

Dyno247365 · #6 06-07-2006, 09:54 PM

Quote:

Originally Posted by AFI 05

for my car.. oh shit we have the same car.. well anyway.. the fuel pump relay is the relay to the far left of the 3 if your looking at the engine bay from the front of the car.

On mine, the far left is the MAF sensor relay. There's a chance it's different.

AFI 05 · #7 06-07-2006, 09:55 PM

we dont have a MAF.. his is a 90'

wrightz28 · #8 06-08-2006, 08:57 AM

Gentlemen, let's not over look that pesky 'hidden' fuse by the battery for the f/p & ecm.

jcase350 · #9 06-08-2006, 07:53 PM

What and where is this fuse by the battery?

Genopsyde · #10 06-08-2006, 08:38 PM

it's a fuse for the fuel pump relay, and it's located by the battery.

AFI 05 · #11 06-09-2006, 12:23 AM

ahh thats right.. its in one of those black weatherpack fuse holding deals around the battery by the inner fender.

jcase350 · #12 06-09-2006, 08:48 AM

So the Fuel Pump relay is not one of three located on the firewall?

wrightz28 · #13 06-09-2006, 09:12 AM

Yes, the one in middle on most years.

By the battery is a 20A fuse for the circuit. It's on the fender right over the battery, look like a dead end connector but when you open it, voala, there's a fuse in there.

jcase350 · #14 06-09-2006, 02:12 PM

I found the fuse by the battery and it is still good, so I'm leaning towards the fuel pump being bad. Also, I tested to see if there was any fuel coming out of the bleed valve on the fuel rod, there wasn't any. Fuel Pump??

wrightz28 · #15 06-09-2006, 02:22 PM

How did the relay check out?

You know what, I jsut thought about it, you shouldn't have 3 relays on the firewall 'cause you'r car dosen't use a MAF.

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