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Old 06-05-2007, 06:04 PM   #1
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Default Check Engine Line, 1990 Civic, Help!

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.
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Old 06-05-2007, 06:09 PM   #2
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Default Re: Check Engine Line, 1990 Civic, Help! (92coupe)

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.
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Old 06-06-2007, 10:43 AM   #3
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Default Re: Check Engine Line, 1990 Civic, Help! (92coupe)

is it multi port or dual point??? like gremice said, check the count of blinks until it stops.
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Old 06-07-2007, 12:56 PM   #4
 
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Default Re: Check Engine Line, 1990 Civic, Help! (Gremice)

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!
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Old 06-11-2007, 05:46 PM   #5
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Default Re: Check Engine Line, 1990 Civic, Help! (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
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Old 06-11-2007, 06:10 PM   #6
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Default Re: Check Engine Line, 1990 Civic, Help! (92coupe)

tell us what they are and you can find the info in the FAQ section under trouble shoot codes.
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Old 06-13-2007, 04:53 PM   #7
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here you go. there is a key of what they mean here.

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