Just finnished installing a new Greddy Turbo on my son's '95 Civic EX. Everything seems kosher except that when the car is run hard enough for the boost guage to register, the check engie light comes on and the engine idles up and down.

Can anyone help?

Thanks,

Doug

 

Wrong forum-try forced induction forum, you will get more help. I can't tell a turbo from a supercharger

 

thanks, moving to there...

 

Did you put a check valve inline to the map sensor? Is it installed backwards? If the map sensor reads boost it'll give a cel.