ss201

I checked Fuel Pressure a couple months ago, when I first got the "Check Engine" light. At the second click of the ignition "Run", the fuel pressure read 40+ psi. At the third "Strat", the guage read 60+ psi, and stayed at that reading until accelaration. The gauge was read at the fuel rail. I'll try and check it again.

We'll see, I live in a small city, but we atleast have four diff. gas station companies. I'll try and switch, alays run 91 octane.

I keep getting codes saying, " O2 sensor Low voltage bank1, O2 sensor Low voltage bank2, running Lean bank2". I changed teh O2 sensors and cleared codes, but they came back on at test drive. Headers had been installed wen I bought them. I checked the connection at the O2 sensors and seem to be on just fine.

ss201

Whats the life expectancy on the after market fuel pumps (e.i. Racetronics and such)?
Or high vlume fuel pumps?

crainholio

iTrader: (2)

I'm on four years with my Walbro GSS340 pump from Racetronix, including a few times I starved it for fuel during road courses. It still makes 58psi consistently. Don't want to jinx it, tho.

ss201

Thanks man, I was just wondering.

ss201

Well whatever it is, it's making it harder to start my car. Now i have to retry like 3 times just to start the f*cker... really picking away at my patience.

5.3LJimmy

iTrader: (10)

That could be a leak inside the fuel tank or a bad fuel pressure regulator. If the line that connects the fuel pump to the sending unit is leaking or the regulator is bad it will be hard to start do to low fuel rail pressure(this also will cause lean fuel ratio). You need to check fuel pressure and make sure it will hold it after cycling the key without starting the car.

ss201

I'm starting to think its my fuel pump. What do you think about the Walbro pump from Texas-speed?

crainholio

iTrader: (2)

I think you still haven't checked your fuel pressure and reported back with current numbers, unless I missed it.

You could be right, your pump might be on its way out, but you'll want to get some data before going to all the trouble to drop your tank.

ss201

yeah actually your are correct. I have not checked the pressure at the rails. But I was able to contact the previous owner, he said that he started to have problems with it. Had to start to prime the pump once before start. Now Ii see myself priming the pump atleast 3 times before start. Them it just fails to keep pressure when it gets hot. Plus, he showed me that when he put that pump in, he cut a square hole on the bed of the hatchback, undrer the carpet that allows for easy access to the fuel lines.

ss201

Ok well, im getting a fuel pump next paycheck, drop it in, and hopefully it works fine. Wish me luck guys!

ss201

well got my new pump in, works great, it stopped messing up. I think i need a new tune now. but for the most part it stopped messing with me.

5.3LJimmy

iTrader: (10)

Good deal man. I'm glad you got it running right again.

ss201

Thanx man, it sure is a better feeling when you have a properly running camaro!