Hey y'all--

My kid has a 96 Camaro 3.8 M5, all stock except a Flowmaster. I bought the car as a non-running project and we just got it on the road yesterday.

It runs perfectly, until we've been driving 4+ hours, then it won't accept any throttle (push the gas, doesn't rev), runs crappy, then dies. After turning off the key and sitting for a minute, it starts right up. It may run fine for 15 minutes or 15 seconds, then does it all over again. I had to restart it probably a dozen times last night trying to get home.

The ~4 hours driving is mostly around town, a little bit of highway, just making sure the car is OK. And teaching him how to drive a stick. Like I said, the car runs flawlessly, right up until it quits. The gages read normal.

It shows P0122 on the code reader, which is TPS. I replaced the TPS with a new AC Delco today, but the car did the same thing tonight. Again, it shows P0122, but I'm thinking that disconnecting various sensors (including the TPS) while trying to find the problem may be falsely setting that code. But that's the only code it has.

The car has 77K miles. Other new parts include:

plugs (AC Delco Rapidfire/Irridium/whatever/$4 each)
wires (MSD)
front O2 sensors (Bosch)
fuel pump - complete assembly w/ pickup & sender (Autozone? NAPA?)
TPS (Delco)
drained gas tank, filled with new gas
fuel filter

What do I check next??

thanks!
kevin

 

No ideas?

I only had time to drive about 90 minutes last night. Nothing went wrong. Did see when running WOT thru the gears, the fuel pressure dropped to ~18 midway thru 3rd.

I assume that shouldn't be happening...

I probably should have dropped the tank and had it cleaned, but instead I used the trapdoor method of fuel pump replacement. I'll open up the trap door again and look at the fuel strainer, and probably take out the tank when it's close to empty.

What else should I check in the fuel system?

Thanks,

kevin

 

That sounds like the fuel pump going out, although you said you replaced it already.

 

I'm thinking maybe there's some crud clogging the screen. I'll check it when the tank is empty. And I'll change the filter again.

Needs a water pump too...