just some more fc problems...if u can help
Thread Starter
1308cc pure madness
Joined: Jan 2004
Posts: 213
Likes: 0
From: sacramento, CA
just some more fc problems...if u can help
hey guys..any help will do...
87 t2
rc eng 550cc primaries
greddy/denso 720cc secondaries
walbro 255lph pump
safc neo "dyno tuned" (at the time with a vacuum leak and tps out of adjustment)
fcd
3 inch straight pipe
mbc at 10lbs
stock tmic
intake
my car has been misfiring pretty bad at idle..it idles at 1000-1200 but it sputters and the engine likes to shake...took out the plugs to clean them...(btw they are fairly new)...front housing plugs are slightly brownish with some black...rear housing plugs are super black carbon fouled...checked spark...spark seems pretty strong all the way around...also like i said above, the car was ran on a dyno with a vacuum leak and the tps was out of adjustment at the time (yes flame me here), but i fixed them after searching the forum...could this misfiring be from having to retune the afc?...or faulty injectors?...the injectors were brand new when i put them in a couple months ago....the car drives fine...boosts strong...but idle seriously sucks...it sputters and wants to die at usually every stop....or could this be from just running so rich?...and why is one housing running richer than the other?...could this be fixed with a msd or hks twin power?...any help will do! thx..
87 t2
rc eng 550cc primaries
greddy/denso 720cc secondaries
walbro 255lph pump
safc neo "dyno tuned" (at the time with a vacuum leak and tps out of adjustment)
fcd
3 inch straight pipe
mbc at 10lbs
stock tmic
intake
my car has been misfiring pretty bad at idle..it idles at 1000-1200 but it sputters and the engine likes to shake...took out the plugs to clean them...(btw they are fairly new)...front housing plugs are slightly brownish with some black...rear housing plugs are super black carbon fouled...checked spark...spark seems pretty strong all the way around...also like i said above, the car was ran on a dyno with a vacuum leak and the tps was out of adjustment at the time (yes flame me here), but i fixed them after searching the forum...could this misfiring be from having to retune the afc?...or faulty injectors?...the injectors were brand new when i put them in a couple months ago....the car drives fine...boosts strong...but idle seriously sucks...it sputters and wants to die at usually every stop....or could this be from just running so rich?...and why is one housing running richer than the other?...could this be fixed with a msd or hks twin power?...any help will do! thx..
HAILERS
Joined: May 2001
Posts: 20,563
Likes: 27
From: FORT WORTH, TEXAS,USA
Turn the variable resistor fully clockwise with a fully HOT engine and see if that helps ....or not. If not, then put the screw back where it was.
Or it could be a terribly misrouted vacuum line. Somewhere.
Or it could be a terribly misrouted vacuum line. Somewhere.