brianlibby791

Good evening all, so recently i have been driving my GTA around and have noticed that upon light throttle after coming off stoplights as well as slight throttle pulls at normal driving speed that the car seems to buck and hesitate badly, i also seem to hear a squealing or vibration as it happens (Could just be a heat plate or something).

Furthermore, I drove the car to a walmart last Sunday and as i pulled into the parking lot, the car was idling at 500 rpm and jumping down and up trying to stay running, then proceeded to die.

Also, the car seems to suck down the tank of gas in it really quickly (Unless something is funky with the sending unit) ive gotten around 89 miles on one tank it seems. I did do my research and have also found that this may be fuel boiling?

Only thing done to the car is cat delete along with smog pump and the South Bay Fuel Injectors bosch 22lb fuel injectors Link: https://www.southbayfuelinjectors.co...-tpi-injectors.

Im at a loss as to weather its injector related or something different. I was thinking of going to the delphi set but i would love to hear more opinions for you guys first. Any help is appreciated. TIA!

GeneralDisorder

iTrader: (1)

What does the computer say? Are you in closed loop? What is the BLM and INT? Does your CTS make sense? What are you IAC steps and TPS voltage at idle? In the live data how is your RPM signal - is it smooth at all speeds and idle or is it hashed up and jumping around to unreasonable numbers? What is your fuel pressure? What is the condition of your tune up?

Without talking to the computer - you might as well be searching for a needle in a dark room with a blindfold on.

GD

Aviator857

Agree with GeneralDisorder you need to invest in a scanner that will give you the raw data. Or make friends with a shop owner and exchange your services as a gofer/broom operator for the use of their scan tool LOL