my friend just got his car back from the show after having his ls changes to a ls vtec turbo, and it doenst idle right. it revs between 1000-2500 rpm, im sure its a sensor, but does anyone know of why it may be doing this?

 

any cels. if hes on a chipped ecu and untuned, that may cause the idle to surge around

 

he is tuned with hondata. tuned at 8 psi

 

mine did that too.. exact same problem.. i checked all vacumm lines and they were good. i went bak to the shop to show him and he adjusted the screw from the distributor and it fixed it.

 

we figured it out,since its an ls/vtec, they shop shoul dhave put a vtec sensor on it, but didnt, but we changed it and it fixed it