i turn of my s4 t2 with s5 jdm motor swap and when i turn the ignition to the off position my car doesn't turn off all the way. it stay on the sputters out and just doesn't turn off like normal. wats the problem? My turbo when i get off the gas sputters back when i decelerate off the throttle. wats the problem with that also.

 

did you change the alt recently?

 

no i did not the only thing currently that i have done have taken dash out and the some of the wiring that wouldn't effect the cars running condition.

 

sounds like you took out wiring that can effect the cars running condition.

What did you remove as far as wiring?

It sounds like your ignition is being back fed by the alt.

Either that or your tune/timing is so far off you are dieseling.

 

i removed the harness behind the dash that hooks to stereo and all the speakers..it went to the cigarette lighter and the defroster