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This vintage Honda has a fuel injection relay located on the far left side under the dash. On my 88 Civic it was just left of the small compartment that looked like an ashtray. These relays have a problem with the solder joints failing and can be removed, resolderd and replaced. Other symptoms are hard starting when the interior of the car is warm. There may be a computer under the carpet in passenger foot well area that will blink an LED to give you the exact trouble code. Searching trouble codes for Civic will lead you in the right direction.

AnswerI have a 1990 Honda civic 3 door, and my check engine light was on, about a month ago. I took it to a mechanic, and they told me that the fuel injection might be stuffed, or dirty. they also told me that it may be an electrical problem thoose two otions are the most important ones, because the last one was a tune-up and i check all and the tune-up, and cleaning the fuel injection worked.
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โˆ™ 2011-09-13 22:55:38
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Q: What could be the cause for the check engine light to come on in a 1990 Honda Civic Hatchback 3 door?
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