so i got a 97 coupe with a jdm b18c swap using the y8 harness with a jdm p72 obd2a ecu skunk2 stage one cams with sk2 cam gears and a sk2 manifold and a bbk throttle body my issue is my idle is weird

wheni first got the car it was idleing at 1500 so i adjusted the throtle adjuster and got her to idle at 800 rpm so i started it again today and it was back at idleing at 1500 so i turned it off it sat for a hr and turned it back on and the idle was at 900 then turned it off sat another hr turned it back on and it idle at 1200 everytime i start the car it idle at a different rpm and it a steady idle, no surging or nothing like that all plugs are correct im thinking it my tps???

 

up

 

Clean the IACV and throttle body, and adjust the throttle cable to have about 1/2" of free play.

 

throttle body new iacv is clean and their no tension on the throttle cable

 

Any CEL codes? Vacuum or intake air leak?

 

cel for secondary o2 bbut that because it not hooked up and no leak i think it the tps that the only thing that make since