I have a 1988 non-turbo RX7 and the check engine light flickers on and off. I have noticed though, that it mainly goes on when I let go of the gas, and I think it may be because of the idle. I say that it may be the Idle because it seems to go off when I reach about 1500RPMs. Any information would be greatly appreciated.

 

Check the error codes that the computer is generating.