Running fine during day but at nite ???
06-03-2009, 10:20 PM
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Car: '88 Iroc-Z z28 Camaro
Engine: Carb 355
Transmission: t5 5-speed
Axle/Gears: 4.11
Running fine during day but at nite ???
I got an '88 Iroc with a 383 stroker in it with stock ecm and prom with a 5 speed. For some odd reason during the day it'll run fine and I can have it wide open throttle and hit high speed with high rpm's. However during the nite when i try to reach high rpm's and high speed's, the car will spitter and sputter and i can go full throttle. I completely ran out of ideas, i changed spark plugs, opened up the gap on them, the icm is new and good working, wires are getting at spark. i jus dont know wat it is. please help me, i trying racing some mustangs and this happens. Thank you for any help 
06-03-2009, 10:45 PM
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Car: 88 gta
Engine: 350 HSR
Transmission: 700r4
Axle/Gears: 3:27 borg warner 9 bolt
Re: Running fine during day but at nite ???
do u have a mass air sensor, if so u can clean them. i have to clean mine monthly or it gets a stutter especialy at night
06-03-2009, 10:49 PM
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Car: '88 Iroc-Z z28 Camaro
Engine: Carb 355
Transmission: t5 5-speed
Axle/Gears: 4.11
Re: Running fine during day but at nite ???
how do i clean it because i descreened mine
06-03-2009, 10:49 PM
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Car: 91 Z28
Engine: 383 SuperRam
Transmission: ProBuilt 700r4
Axle/Gears: G92 3.23
Re: Running fine during day but at nite ???
probably has to do with the lower outside temps at night. get it tuned to run properly at all temps, get some datalogs and post it up in the diy prom board.
06-03-2009, 11:35 PM
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Car: '88 Iroc-Z z28 Camaro
Engine: Carb 355
Transmission: t5 5-speed
Axle/Gears: 4.11
Re: Running fine during day but at nite ???
ok, im gonna have my buddy do that when he attepmts to tune it this weekend. hes got the labtop, the chip burner, everything that I need to burn my own chip. its come pretty neat stuff of wat he can do on this lil labtop
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