broda805

iTrader: (6)

i just got done installing a turbo on my sc with new spark plugs. started her up yesterday it seemed to be ok no oil leaks drove it around a bit light throttle no boost seem'ed to run fine i noticed that the idle was a little low and you could feel a bit of vibration at around 700rpm i wanted to see if i could raise it a bit upto around 850 or 900

after i started her up again (before messing with idle) my wideband would show it shift into lean around 17.1+ n the idle got really rough. it was idling before that at around 15.3 to 15.7 but now it only starts at 15 and drifts into lean in about 10 seconds n then gets rough (warmed up)

driving around last night the a/r seem'ed good just light throttle city driving stayed in the 14s 15s

i played with the idle screw and got the idle to around 900 but still really lean and rough, i tried looking for vacuum leaks but i couldn't source any.

92' sc300 with 130k
ngk bkr7e gapped at .28
it starts up easy
safc neo installed a month before this haven't touched any of the settings ran perfectly as stock is before this
bw s362 turbo
AEM wideband
stock o2 sensor mouted on the downpipe and i didnt mess with the other o2 near the cat

any help would be appreciated

turbodremz

iTrader: (18)

sounds like a vac leak. Double check and zip tie all your vacuum lines, check your couplers and clamps between the turbo and the TB.

broda805

iTrader: (6)

yeah im gonna check all the hose clamps again in a few >.< hope i have one of those "aha!" moments and find the definite answer to the problem but usually im not that lucky

turbodremz

iTrader: (18)

Also where do you have your MAF? post or pre turbo?

broda805

iTrader: (6)

maf pre turbo

scviolence

iTrader: (17)

hey broda805 can u send me the settings on your afc neo ( an air map) im using the map that i got from someone on here and it seems to be okay. just wanna see how you have yours mapped. also was wondering why u are running ur maf pre turbo? i got mines post cause i read it would keep it from stalling just wondering.

broda805

iTrader: (6)

yeah i havent messed with the afc much still havent got my clutch in. i heard the post turbo only works for the hotwire maf not the karman?

but i found my leak was the coupler on the turbo intake so that got rid of the lean idle

i tried adjusting my idle screw to raise the idle up just a bit but the weirdest thing happed after i raised it to about 1k the car stalls out when i try to give it some gas driving and hesitates when you try to rev it in park, i was pretty confused but i knew that was the only thing i messed with so i turned the idle screw back to stock and it runs fine again any ideas?

turbodremz

iTrader: (18)

you can run the maf post-turbo, the KV maf can meter it just fine, but its limited to 12psi IIRC...