- Sep 28, 2004
- 72
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okay i have this idle issue that i just can't figure out. my car will run perfect at times and you wouldn't know there was anything wrong with it, but other times the idle will keep jumping as high as 1200 all the way down to almost zero and it stalls sometimes. i can play with the gas and sometimes the idle evens out and it stays perfect at about 650-700. i have checked just about everything i can think including the maf, the tps, the iac is new, the timing is good and i can't find any vacuum leaks. i replaced the tfi module about a year a so ago and it seemed to help the idle issue i was having at the time. it has since came back and is getting worse but sometimes i can't keep it running and other times it runs perfect. i can let it idle in the driveway when it evens out and it will run forever perfect until i hit the gas. this is a major issue in town when i stop at lights the idle just starts jumping so much that is stalls out at times. if anyone has any input on this let me know.
my setup
347 stroker with anderson n-3 cam old grind (2500-6000 range)
gt40 tubular intake
roush 200 cast iron heads
mac long tube headers, full 2.5" exhaust with h-pipe
70mm tb
cai fenderwell
76mm c&l maf calibrated for 24lb inj
24 lb injectors
t-5 manual
3.73 gears
stock distributor with accell cap and rotor, replaced tfi with used....worked for a while, not sure how to check to see if it's bad
new ford racing wires
new ford racing coil
msd 6a just fixed by msd last year
new plugs last year
new iac last year, coolant temp sesnsor
timing is base 10 degrees
dyno tuned at RJ Dyno shop batavia ny, 2005
NO CHECK ENGINE LIGHT!!!! (it works i check it)
Any help would be appreciated because i don't want to take it in if i don't have to, thanks.
my setup
347 stroker with anderson n-3 cam old grind (2500-6000 range)
gt40 tubular intake
roush 200 cast iron heads
mac long tube headers, full 2.5" exhaust with h-pipe
70mm tb
cai fenderwell
76mm c&l maf calibrated for 24lb inj
24 lb injectors
t-5 manual
3.73 gears
stock distributor with accell cap and rotor, replaced tfi with used....worked for a while, not sure how to check to see if it's bad
new ford racing wires
new ford racing coil
msd 6a just fixed by msd last year
new plugs last year
new iac last year, coolant temp sesnsor
timing is base 10 degrees
dyno tuned at RJ Dyno shop batavia ny, 2005
NO CHECK ENGINE LIGHT!!!! (it works i check it)
Any help would be appreciated because i don't want to take it in if i don't have to, thanks.