i have a 92 350 firebird and when i pop it in reverse, it shuts off! i feel that the rpm's are too low. and sometimes it doesnt shut off when i pop it in reverse, but when i put it in drive it also turns off, i already replaced the plugs with delcos, changed the belt, changed the air filter, i dont think it needs an oil change just yet, might it be a timing problem? like i said i feel the rpm's are too low. but once i get on the street or on the highway it runs well, the faster i go the better it runs, but the slower i go the worse it gets, can somebody please help me out? this car had a lot of problems when i bought it a few weeks ago, now the only thing left is this problem, thanks for your help!!

 

What year/engine/fuel system does the car have?

 

its a trans plant 91 350 form a 91 formula into a 92 305 L03 firebird, tpi, automatic, i bought off some guy in long beach a few weeks ago, thanx! for your help.---jorge

 

Jorge,

So, It's TPI, Have you cleaned the throttle body and IAC air passages? IT would be a good starting point. If that doesn't solve the problem, you may need to remove and clean the IAC stepper motor and pintle. Check this thread for clues:

https://www.thirdgen.org/techbb2/sho...80#post1486180

 

Hey, check those ground straps from the engine to firewall and make sure their all tight. You could be loosing ground when you torque the motor in reverse. I think there is one from battery to fender too.

 

yeah i will check those ground wires, i cleaned out the injectors really good, but it still does it, how ever i cant find the stepper pintle??? i have no idea where its at, i'm supposed to clean that really good but i cant find it.---thanx sqzbox!!!-

 

Did you click on the thread that Vader sent you ? Hanes has a manual sold at Auto Zone. You can find most of what you need in it.

 

i cheked those wires and they seem strong enough, i'll have to buy that manual, well thanx alot for your help sqzbox!! i'll let you know what works or if you can think of any thing else hook me up. thanx---