EgK2o09

I recently swapped a b20 into my 93 civic. Check engine light wasn't on.. then I turn the car off, start it up hours later and the light is on. The car is in limp mode, setting the rev limit to 3000rpm. When I tried to pull the code the light is on solid. Its not flashing the code out. I reset ecu by pulling 7.5A back up fuse... start the car back up no check engine light on.

Once I reset ecu I can drive as much as I want, no check engine light. The minute I turn the car off and back on the CEL is on.. but I cant retrieve the codes.

ANY SUGGESTIONS? Thank you HT

Former User

When the CEL turns on and stays on steady, leave the engine running while you jump the service connector.

EgK2o09

Thanks Ron... I'm going to try that today. Thank you.. I have to figure this out.