emanage ultimate.........hey guys....whats some reasons for misfire at idle?.....its misfiring like a **** at idle.....but not in boost.....im running one step colder plugs(bkr7eix)....just start listing some things and ill try em all.

 

are they gapped properly?
running too rich?
did you use a harness or solder the wires? and are they correct?

just some off the top of my head

 

they are gapped to .032in.......at idle its running 14.7-15.4.....and the wires have never been touched

 

my car idles wierd right before it blew up.. Im thinking it was a rod bearing going..

ur issue sounds like vacume leak

 

bastard had me scared.......talkin about a rod bearing and all........when it does misfire the afr's will go lean

 

Go through and check vacume leaks.. check for boost leaks.. Start easy stugle to the hard stuff..

good chance its something small

 

also? are you running big injectors?

 

oh my car will also die once in a blue moon coming to a stop......if i let it engine break it will die after i push the clutch in.......if i use the breaks then push the clutch in it will die.......which would explain the vacuum leak.

 

yea im running 750's but have made the changes in the ultimate to run them.....ill do a boost leak test tomorrow night and go ahead and check all the vacuum lines as well.

 

again my car did this right before it blew up.. as the bearing was creating alot of drag on the motor..


good news is that probably not your issue.. remember vacume leak now that you have adju FPR vacume changes the amount of fuel ur car see's!

I would do a full boost leak test fix your leaks..

 

750s are large injector to run.. ur idling your car to lean with those...

tune it to 13.5

Muwahah add a little bit of fuel or pull a little bit of timing..

repost when finished

 

gingles seriously i am starting to dislike you!!! lol you are having the same issues like me lol! my car stalls like your once in a blue moon and the idle is jumpy and my afr idles is the same. except i have 700cc injectors not 750cc. i'm thinking its my tune. i am going to meet up with luigi tomorrow to fix all that. and plus i am throwing a cel code saying bank 1 is to rich.

 

bank 1.....bla......hank that biatch out.....im running with no o2 sensors so i can tune everywhere.......tomorrow ill richen up the idle and do my boost leak and vacuum leak tests......also im gonna check compression for the hell of it.

 

marcelo i though u put in 850cc injectors?

 

I'm running 750s with AEM EMS and this sounds just like my car. It seems like it idle hunts when I come to a stop. would richening it up to 13.5 correct this??

 

nag I got 700cc.

Hey gingles I would take the o2 sensors out but I don't like seeing the check engine light!

 

haha....thats why i have a scantool in my car 24/7.......but yea im gettin a standalone soon so i wont have any need for o2 sensors.........

 

my friends car does the same thing lmk if you guys find anything out he is only on a basemap gonna get his ptuning exhaust installed then tune

 

yo its so weird how ppl are running outta fuel with 700cc inejctors like 400-420whp, luiggi says im not even close to running outa fuel? he said he tunes it a different way so it doesnt use as much fuel or something? like mike u have 900cc injectors, twin fuel pumps, custom fuel return setup... for 360whp.. thats insane but now ur gonna need it for sure with a built motor and w.e else ur doin, i would love to get a custom fuel return setup goin though

 

what luigi does is tune with the airflow adjustment map.....and injector adjustment map....he sent me marcelo's tune along time ago for me to look at........im also starting to tune like he his........hey marcelo, elevation, and soflo........what you guys doin wednesday night?....hahahaha......my buddy is about to buy a celica gts from a guy in gibsonton(south of tampa 25 minutes) and i was thinkin of driving him down there