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Honda Civic Check Engine Light
Asked Oct 10, 2007, 10:26 AM
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15 Answers I have a great running 1997 Honda Civic HX that has an issue with the check engine light coming on at random times. I have taken to the dealer and all they are able to do is clear the codes. Not able to read or diagnose. Connection error comes up on the OBDII diagnostics. I have noticed no real pattern in when the light comes on but possibly when I have a hard acceleration or a sudden decceleration but the car makes not change in sound, no decrease in acceleration. No real sign of any engine problem or problem at all. Seems to me more of a connection issue with sensors and the computer on the vehicle. I still average 35-40mpg so I'm happy. Just worried about passing emmissions with the Check Engine Light on. Any advice would be much appreciated. Thanks |
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| The situation is I'm in Illinois and new emission practice is to ensure there are no codes on your vehicle. Additionally, the problem is when you hook up a code reader it only reads errors so there are no issues that can be addressed at that point. I'm wondering if anyone has ever experience such a problem. Maybe a lose harness or connection that gives way on Honda's? | ||||
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| You might want to check the catalytic converter, I have a same problem with my 99 honda civic 3 years ago, and no body can tell what was going on. And the same thing only thing they can do is to reset the code to turned the engine light off. It failed on new emission test but it pass on old passion emission test. So the computer is sending a wrong signal. But the fix is the crack catalytic converter, I replaced the cat and everything back to normal and it pass on both emission test. | ||||
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| Klug, I have the exact same car and the exact same problem. Have had both for years. I'm coming up to 220k miles, still get great gas mileage. My husband used to be an auto mechanic, knows engines inside-out. He did everything he could, and then some, but this problem persists. I really want to make it to 250k miles, but I am due for an emissions test and not sure I can pass this time. Have you had any luck since you posted this? | ||||
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| We did get codes, my husband cleaned/replaced the things the codes pointed to (such as EGR - he replaced valve) but the problem persists. He said the thresholds are set too low. There was a certificate issued from Honda that stated this, up to 160k miles. I had 162k miles at the time. | ||||
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