Its a 89 firebird tpi and when I punch it hesatates for a half second to a second then takes off. I am thinking maybe fuel injectors of a tps any ideas let me know.

 

my ATV does that when its cold. But i dunno just throwing it out there

 

i have been doing some digging and i think it might be the injectors i was just wondering if anyone had some thoughts and if anyone knew what the ohms was sopposed to be thanks

 

My Carburated 305 in my Firebird S/E does the same thing, try changing the fuel filter and doing a fuel system clean....should clear things right up

Sounds like fuel starvation.

I havent done this to my Firebird yet cause i don't know how to change the fuel filter (not on the fuel like most cars)

 

yea I thought about that I was going to do a tank and pump change too.

 

underneath the car man.

 

I am going to ohm out the injectors today and see what I get.

 

he said his is carbed if thats the case their is a little filter inside the front of the carb.

 

I have the same problem too sometimes when my car is hot. I am pretty sure I have a leaking injector if not a few because it doesn't fire right up when it is hot, it has to turn over a few extra times. I have 22 lb. injectors ready to go in but no extra $$$ for the tuning require to change the injectors.

 

I had the same problem with my 91 V6 for a long time. I did a tune up, fuel filter, and just for fun, threw a MAP sensor on it to. One of the three things listed fixed it. I doubt it was the tune up. The fuel filter could have been somewhat plugged, so that could've been the cause. The other thing is the MAP Sensor. If the MAP isin't reading properly, it'll run the car rich, or lean, but usually rich, causing black smoke at low RPMs, and when you hammer on it initialy. Just some suggestions.

 

My 93 pickup with a 4.3 V6 did that, off-idle hesitation. Changed the sparkplugs and that fixed it. The ones I took out looked just fine. (go figure)
Don't overlook the simple stuff .
Fuel starvation will affect the WOT horsepower output first. (ie: going up a long hill with the gas pedal on the floor)