phonedawgz...It happens when I floor it. It gets worse the more I drive it. By the time I have gone approximately three to four miles, I have slowed to first gear with my foot just barely on the throttle in order to keep moving. I give it a little gas and it dies. I stop and turn the car off, then back on, and the condition improves slightly allowing me to limp home, or a little farther until I have to turn the car off again. It only happens when I am in gear (four speed standard). While sitting in neutral and reving the engine the car is fine.
I had a problem with my 85 v6 stock engine that it would cut out while accelerating and it turned out to be a bad Throttle Position Sensor. $60 at autozone and no prob since.
------------------ ===Always trying to find time to work on cars=== Louis Duet Baldwin, Long Island, NY ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Blue" <= '85 Fiero GT Stock V6---Stock everything. Trying to keep it 'mostly' that way. But I just got the 3800sc to swap into it! ~~~~~~~~~~~~~~~~~~~~~ "Boo" <= '81 Delorean DMC-12 VIN #5835 "Don't hate ... Carburate!" Stock PRV engine Robertson Equipped Neiland/Delman Engineered Peugot 604 Intake manifold Exhaust headers Anti-3rd brake light
Have you ever looked at the fuel pressure while the trouble is occurring?
A plugged cat normally changes the exhaust note and sounds like wheezing. If you have a plugged cat, pulling the O2 sensor out will improve the response of the engine greatly.
As suggested, I'm going to continue to focus on the ignition system, but first I'm going to take a detour and check the cat. I'll try unplugging the oxy sensor and see what happens. I'll also check temperature before and after the cat, to see if there is a difference. It seems like an easy thing to do before I continue to throw money after parts.
I just hooked up the fuel gauge and took the car for a spin. The fuel gauge was at about 36 PSI while idling, and varied only one to two PSI while reving. As soon as I was under way and put the the peddle down, the PSI dropped to zero and I stalled. PSI recovered to 36 as I let the car idle. The process repeated itself multiple times on the way home.
I just hooked up the fuel gauge and took the car for a spin. The fuel gauge was at about 36 PSI while idling, and varied only one to two PSI while reving. As soon as I was under way and put the the peddle down, the PSI dropped to zero and I stalled. PSI recovered to 36 as I let the car idle. The process repeated itself multiple times on the way home.
Sorry for the double post. I don't know how I did that.
[This message has been edited by shurlbert (edited 09-25-2014).]
Problem fixed!!!! Thank you everyone for your suggestions.
I replaced the fuel pump and eliminated the pulsator. I replaced the pulsator with a piece of fuel immersable hose as suggested on other forums. I suspected that the pulsator was the problem, but replaced the pump at the same time to cover my bases. Anyway, the car runs great now.
