LigHtEmUp01

just did a winter build and got it out on the road. car starts and idles fine but when in gear its missing, backfiring etc all over the rpms. put a new opti on car did same thing but now is worse. when you get in the throttle a little bit the needle for the tack flickers and the car cuts out the i get a ses light on that goes away every time i start it. i still have no tune yet because its been running so bad.

LigHtEmUp01

also want to add i have checked plugs and wires and every other plugs

nitrous2fast

iTrader: (2)

maybe the ICM.

LigHtEmUp01

its never done the flicker then ses before though i wouldnt expect the icm to just stop working correctly

Puck

iTrader: (17)

Sounds like what happened to me when my battery cable came loose...double check all your grounds and put the battery on a load test(not just voltage).

Could be something that simple like in my case.

LigHtEmUp01

i did notice when this happens the voltage drops but i can make it do it

LigHtEmUp01

the icm is good, coil is good, vacuum lines to opti are good, sensors are all plugged in and all grounds are good