FUEL INJECTORS
06-13-2010, 10:33 PM
#1
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Car: 1990 TRANS AM GTA
Engine: L-98 350
Transmission: 700R4
Axle/Gears: STOCK GM 10 BOLT
FUEL INJECTORS
I CHANGED MY STOCK FUEL INJECTORS WITH A SET OF TRICKFLOW 24LBS/HR PART #Tfs-89024 NOW IT WONT START OR WHEN I DO GET IT RUNNING I HAVE TO BE IN AND OUT OF THE THROTTLE AND RPM IS GOING UP AND DOWN, ITS A BONE STOCK 1990 TRANS AM GTA WITH THE L-98 350, OH AND NO VACUME LEAKS
06-14-2010, 04:19 AM
#2
Re: FUEL INJECTORS
check the fuel pressure
06-14-2010, 07:41 PM
#3
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Car: 1990 TRANS AM GTA
Engine: L-98 350
Transmission: 700R4
Axle/Gears: STOCK GM 10 BOLT
Re: FUEL INJECTORS
yea its at 40psi, new fuel pump and filter
Last edited by bob90gta; 06-15-2010 at 10:04 PM.
06-21-2010, 08:27 PM
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Car: 1992 z28 Purple Haze
Engine: 5.7L Tuned Port Injection
Transmission: 700R4
Axle/Gears: 3.23 both spinning
Re: FUEL INJECTORS
It could be that 24 lbs/hr is too much. I think the stock injectors flow 19 lbs/hr. If it ran fine before you changed them then that's probably it. Try putting the stock ones back in and if she runs fine with the old ones, there you go.
06-21-2010, 09:08 PM
#5
Supreme Member
Re: FUEL INJECTORS
Bingo! Im afraid jtsk is right. Unless youve made changes to the motor to increase its fuel requirements, larger injectors are not going to work.
06-23-2010, 12:29 AM
#6
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Car: 1990 TRANS AM GTA
Engine: L-98 350
Transmission: 700R4
Axle/Gears: STOCK GM 10 BOLT
Re: FUEL INJECTORS
yaeh and it ran like s*#@t with the stock ones not enough ohs of restance, would a dyno tune be able to adjust the ecm so it could run
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