hey i got this 89si with a 93ls swap. the check engine light seems to be going on as i driver in high rpm. or if i drive for a long time at speed of 35pmph+. check engine light turns off when i restart the car. any ideas? someone told me it could be a bad distributor.

 

if you read the FAQ, a section will guide you through the process of checking for ECU codes. this will tell you the cause of your CEL. sounds like your knock sensor.