Driving home from work last night my CEL came on. Temp gauge was pegged. I shut it down and let it cool. Radiator was gone so I replaced it today with a new one. Temp is fine now. As soon as I get on it and rev it out at all the CEL comes back on. So I tried to pull the codes, and it doesn't give me any. CEL just turns off like normal. I disconnected battery for 30 seconds, and started it up no CEL. Go beat on it, and it comes on again?

And yes I know how to pull the codes.

So what can make the CEL come on but not produce a code? And this car is all stock besides a K&N in factory air box. No CEL before the radiator crapped out and overheated.

 

check if ur ECT is connected well ( ENGINE COOLANT TEMP..)

 

I fixed it. My 02 sensor hookup is crappy the wire and tab pull out of plastic. Some how it got pulled out. Not sure why it didnt thro 02 code. She is back to normal now!

 

niice

 

Can't tell by your post, but you do know that on the 90 DA's OBD0's , you check your cel codes by looking at the red light on the ecu itself, not the CEL.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Honda Tool &raquo;</TD></TR><TR><TD CLASS="quote">Driving home from work last night my CEL came on. Temp gauge was pegged. I shut it down and let it cool. Radiator was gone so I replaced it today with a new one. Temp is fine now. As soon as I get on it and rev it out at all the CEL comes back on. So I tried to pull the codes, and it doesn't give me any. CEL just turns off like normal. I disconnected battery for 30 seconds, and started it up no CEL. Go beat on it, and it comes on again?

And yes I know how to pull the codes.

So what can make the CEL come on but not produce a code? And this car is all stock besides a K&N in factory air box. No CEL before the radiator crapped out and overheated.</TD></TR></TABLE>