I'm having a check engine light on after doing a f20dohc swap w/ h23. The CEL comes on after the engine heats up to normal temp. Does anyone know why that comes on??? is it cause of my O2 sensor or a bad header??? i did throw in an aftermarket header. the oil sending sensor is not the original...the bolt on the h23 is bigger so i cut off the wire to re-wire to the f20....throws CEL on after normal temp has been reach.....any ideas???


daggers

 

why don't you check it? Jump the connector that is behind the radio under the dash.

 

jump as in?? how do you do it??? walk me step by step...newbie to electric system....