Hello, I'm working on my daughters civic EX 95' and I jumped out the test harness and got the check engine light to blink 3 long and 1 short with car running. normally the light stays on. My chiltons book reslly dosn't explain what these mean. it also says there is an led on the ecm but there isn't so I guess I have only the check eng light to go by. anyone know how to reag these codes?, Thanks Joe

 

I forgot to mention the car runs good, no change since the light came on.

 

Look in online resources sticky at the top of this section...

 

sounds like 31, but it depends on the time between the breaks
http://www.hstuners.com/forums/showt...threadid=23007

 

is your car an auto? cuz a 31 is the Automatic transmission B signal.

 

Thank you ! I didn't know about 1sec meaning 10 and half sec meaning 1. actually it was four long and one short so 41. I guess I got a bad O2 senser, thanks again, Joe

 

there ya go. thats the O2 sensor heater i believe. good luck.