Ok so new motor. Now im running a d16y7. And guess what i still have this idle issue motor starts fine then drops to the line above 0 rpm running then kicks its self to 1500 and slowly goes down. Sits at 1000 for a bit then drops again. and when i drive it lags real bad. Completly undrivable. Feels like throttle response. Thing is i drove the engine before i pulled it and was perfect. Acceleration, response, throttle all there pulling good. Only thing i reused from my z6 is the intake manifold. Im running a p06 with no CEL and iacv has been cleaned and changed three times not that lol. No vac leaks, coolant is bleed, throttle cable is loose. Map is good. Im thinking tps...

 

so did you change over the throttle body, cable and bracket ?

 

Naw. I just sprayed carb cleaner on my iacv and it dies down. Lol so im guessing its the seals in the iacv lol i was wrong.

 

lol so you kept the one part from your old motor that could cause the same issue? so why are you posting this thread?

 

Obviously i needed help to figure it out. I changed the iacv about three times before so i figured that wasnt an issue.

 

I put gasket sealer on the iacv start it up and it drives worse lol then i come home take off the cable turn it on and idle is still wob wob. So the cable is straight. I unplug the tps and drive it. And it drives like a new car lol so its my tps. Will i hurt my gas mpg or anything else driving without the sensor plugged up? (temporary)