92coupe

I have a 1990 civic with the 1.5, base model etc...

After driving the car for a few minutes, sometimes 1 minute, sometimes 10 or so, the check engine light comes on. Then the car idles quite a bit higher, and stumbles a bit getting back on the gas etc...

How do I check codes with this car, and any guesses on what it may be? The car also seems to be getting poor mileage, but thats expected in this situation I guess.

.Grimace

to check the codes lift up the carpet on your passenger side footwell. there will be the ecu with a little led light. turn the car to auxilary power or whatever it is and count the blinking light. a quick blink =1. a long blink= 10.

ef_hatchback

is it multi port or dual point??? like gremice said, check the count of blinks until it stops.

methods555

same problem here....just replaced the plugs and air filter but needs a oil change. Possible I blew the o2 sesnsor but not sure. The CEL does not come one everytime I run the car, only once in a while. Strange....Is there a certain pattern the lights flash and then stop?? Also where can I find a list of the codes for a OBD1....thanks!

92coupe

Ok I counted them and wrote them down, now where do I find the list of what they mean? Thanks for the help by the way

julioboostamante

tell us what they are and you can find the info in the FAQ section under trouble shoot codes.

RPRacing

here you go. there is a key of what they mean here.

http://www.rpracingonline.com/...s.php