When I cut the car on, I hear the pump; but, it doesn't sound strong. On my chevy truck, it was a constant noise until the pressure point was reached, then it cut off. On the Camaro, it seems to gradually reach the point under a strain, and the pump gets slower the closer it gets to the cut off point.

Kind of like a starter on a dying battery and the engine doesn't start, the starter just gets slower.

Engine runs fine, but plays catch up when you lay into the throttle.

The only other problem I have with the car is that it throws a code 34 (EGR) when warm. I replaced the EGR valve, but no affect. It doesn't start like a MPFI car, it acts more like a cold natured carb. You have to pat the gas until it warms up. When it's warm, it wants to stall - Especially after stopping at a red light.

Did a major tune up, regular oil changes, redone the brake system, serviced the transmission, replaced the radiator, and fuel filter since purchase over a year ago.

Any ideas on either problem. You guys are a great resource.

Thanks

 

Sounds like vac lines to me. I had the same problem. As for the fuel pump, I really couldn't tell you, as I am having fuel problems myself. The vacuum lines will need to be replaced. You see, the EGR valve, and a lot of other devices for that matter, are powered by the vacuum produced in the intake manifold and the throttle body. I had the same exact problem when I first started driving the car (the problem caused me to be late for a state exam). I looked under the hood. I already knew that some of the vac lines would have to be replaced, but not ALL of them. That took me two hours, two different size hoses (I don't remeber which sizes-I think 7/32 and 1/4 or something), and a jar of Vaseline to assist in placing the hoses. And afterwards, if your hoses are all degraded like mine were, you will need plenty of hand cleaner. That rubber gets everywhere.

 

The only sure 100% way to tell if the fuel pump is dead is to buy a fuel pressure gauge ($40) and test the fuel pressure. No other way to do it, besides guessing. Wouldn't you hate to change the fuel pump and find out it's not the problem?

When my car acts up and I think "oh no not the pump again", I put the fuel pressure gauge on, and when the pressure reads good, I can eliminate the possibility of the fuel system being a problem.

It's an invaluable tool, I swear!!