people who know engines please read, help!
Thread Starter
Joined: Nov 2006
Posts: 1,698
Likes: 0
From: Connecticut
Car: 1987 Camaro, 1986 Trans AM
Engine: V6 2.8 multi-port and V8 5.0 FI
Transmission: 5-Speed and Automatic
Axle/Gears: no idea
people who know engines please read, help!
i have a 1986 trans am with a 305 v8 5.0 tpi with automatic transmission
im not sure if i want to go to a mechanic or dyno shop to tune my car for a s*** load of more money on this car
or is it better to get a scan tool and figure it out myself? and what kind?
i want to bring my idle down but i did set my iac to my best capabilities and using the most common instruction tech articles since non can agree on some steps like in park or drive or when to pull the jump wire from a-b terminals etc...
when i start my car the tach shoots up to 2000(never did that untill i did the min air adjustment and not sure if its good) and then dies down quickly to settle around 1100 and then dies down to 800-900 once it warms up
i rev the engine and it sounds great once i let go it dies down and almost stumbles slightly to catch itself and idle goes back up to 800-1000
its not eratic and doesnt search up n down its a steady idle with i think a steady vacuum leak.
anyways i believe i have a vacuum leak but cant find it and my car is running a lil rich to compensate.
i just want to make sure i get everything i can out of my used engine since i cant buy a new one.
no engine codes present
new iac, rebuilt maf, tps reads .54v, rebuilt/refurbished throttle body, fresh gaskets for tb/runners/plenum, installed a crane afpr set back to stock psi or slightly higher, air foil installed in the tb
new egr valve and regulator
fresh/new pcv valve and hoses on both valve sides for crank case ventilation
k&n filter/cold induction kit
replaced more than half of the rubber hoses.
done a number of oil flushes and i use 91 gas with fule injector cleaner
i like doing things on my own and i hate spending money on labor that i can easily do myself but i need to be pointed in the right direction.
the whole wd-40 thing isnt helping with finding a link but i heard a scan tool or vacuum gauge may help but not sure
you engine guys what do you think?
im not sure if i want to go to a mechanic or dyno shop to tune my car for a s*** load of more money on this car
or is it better to get a scan tool and figure it out myself? and what kind?
i want to bring my idle down but i did set my iac to my best capabilities and using the most common instruction tech articles since non can agree on some steps like in park or drive or when to pull the jump wire from a-b terminals etc...
when i start my car the tach shoots up to 2000(never did that untill i did the min air adjustment and not sure if its good) and then dies down quickly to settle around 1100 and then dies down to 800-900 once it warms up
i rev the engine and it sounds great once i let go it dies down and almost stumbles slightly to catch itself and idle goes back up to 800-1000
its not eratic and doesnt search up n down its a steady idle with i think a steady vacuum leak.
anyways i believe i have a vacuum leak but cant find it and my car is running a lil rich to compensate.
i just want to make sure i get everything i can out of my used engine since i cant buy a new one.
no engine codes present
new iac, rebuilt maf, tps reads .54v, rebuilt/refurbished throttle body, fresh gaskets for tb/runners/plenum, installed a crane afpr set back to stock psi or slightly higher, air foil installed in the tb
new egr valve and regulator
fresh/new pcv valve and hoses on both valve sides for crank case ventilation
k&n filter/cold induction kit
replaced more than half of the rubber hoses.
done a number of oil flushes and i use 91 gas with fule injector cleaner
i like doing things on my own and i hate spending money on labor that i can easily do myself but i need to be pointed in the right direction.
the whole wd-40 thing isnt helping with finding a link but i heard a scan tool or vacuum gauge may help but not sure
you engine guys what do you think?
Member
Joined: Sep 2006
Posts: 237
Likes: 0
From: alabama
Car: 92 camaro rs
Engine: 350 tbi/416's/comp xe268
Transmission: 700r4
Axle/Gears: 3.42
Re: people who know engines please read, help!
think its min iac prob
engine off in park jump a and b
turn key on do not start
wait 30 seconds then remove iac connector
crank motor
set min idle where it feels good
turn off car re attach iac
pull jumper
restart engine and go drive for about 20 min at around 30mph to rest iac
engine off in park jump a and b
turn key on do not start
wait 30 seconds then remove iac connector
crank motor
set min idle where it feels good
turn off car re attach iac
pull jumper
restart engine and go drive for about 20 min at around 30mph to rest iac
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