dagwood

iTrader: (5)

So I've been working on my 89 IROC-Z restoration, and the car is almost finished. Anyways, when I bought the car, it had been sitting since 2008. I had the fuel pump and filter replaced at that time, and got the car running. It has been running flawlessly ever since, but it has only had 220 miles put on it since the fuel pump was replaced in December. Anyways, tonight, I installed the panels under the dash on each side, installed my door seals and rebuilt my hatch pull down assembly. I moved the car outside the shop, and shut it off to go lock up the body shop. Walked back out to the car, and it cranks and cranks and doesn't even attempt to start. There is ZERO fuel at the shrader valve in the fuel rail. Thinking that maybe, just maybe the gas gauge isn't accurate and it might just be out of gas, I put 4 gallons of fuel in it out of a gas can. Still nothing.

Did my new AC DELCO fuel pump crap out on me already after only 200 miles? Also, I checked all the fuses in the fuse box with a test light and everything is good.

Could it be a VATS problem? I have no idea if they even crank over if something crapped out in that department.

I have some spare relays and swapped them around at the firewall by the brake booster. I'm not exactly sure which relay is for the fuel pump, or if my spares are even any good...because nothing changed.

Could my fuel filter be plugged already? After all, the car was sitting for years...but I would think that at least SOME fuel would make it to the fuel rail.

I can't hear the pump run when I cycle the key...

Could I have moved something when I installed the under dash panels? It DID run after that....only moved around the block.

I'm thinking about maybe starting with replacing the filter again. And buy a NEW relay. Hell I don't know what to do. I'm super bummed.

Any thoughts???

Komet

I couldn't hear my pump either. It's probably not VATS, I believe VATS disables the injectors and starter so you would still get fuel pressure. Your security light comes on, then goes off right?

If the fpr was bad, all the gas could have gone back to the tank. You can jumper two ports at the aldl connector thing and that should run the fuel pump with the key on, otherwise it only runs for a couple seconds and stops. If everything was good, your fuel just might not be reaching the rail yet. You could also try disconnecting the feed line and see what comes out, maybe try sucking from the tank from there.

dagwood

iTrader: (5)

Yep, the security light comes on when I turn on the key, then goes off after like 1 second

Majin_Vader

Did you check the fuse by the battery? I've seen people forget that one sometimes.

dagwood

iTrader: (5)

No, I didn't. I remember seeing that fuse but I had no idea what it was for

Komet

Ok, that plus the ability to activate the starter is a strong indicator that it's not VATS, mine does the same thing.

Majin_Vader

That fuse goes to the ECM and powers the fuel pump too if my memory serves me correct. Might start there. ON my car the fuel relay was the middle of the three by the break booster. So you can also just jump the power wires to see if that turns the pump on. If it isnt either of those
then the fuel pump might have went out again. Not sure if you got a cheap pump. I've see other people put a cheap pump in and it goes out in a month. Hopefully that isnt the case.

dagwood

iTrader: (5)

I will check that fuse first thing tomorrow.

It was an AC DELCO fuel pump, so it wasn't a cheap one

dagwood

iTrader: (5)

Another thing I noticed, is when I turn my key to the on position, my SES light does NOT illuminate. It used to come on, and go off when the car started. Now it does nothing

Komet

Ooh, dead ecu not telling the fuel pump to turn on? My last rescue did that. Super fun telling the officer I couldn't shut my car off because the fuel pump relay was bypassed.

dagwood

iTrader: (5)

That fuse he was talking about makes the SES light not come on, as well. I'm almost positive that's what my problem is now. It controls the ECM and the fuel pump

scooter

iTrader: (11)

The gauges fuse, which would power the SES light, has no power to the fuel pump relay. For 89 the power for the pump relay is from the fuse by the radiator support..

dagwood

iTrader: (5)

Thank you guys for the help! The inline fuse was blown by the battery. I replaced it and she fired right up!