Honda Civic Performance - JDM Discussion Engine tech, forced induction, springs, shocks, brakes, tires, etc.

engine light

Old 24-Jul-2005, 09:06 PM
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engine light

so the engine light in my 1989 civic si recently came on...i think its the o2 sensor n e other ideas...and if it is the o2 sensor how much do they go for?

thx...
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Old 24-Jul-2005, 09:50 PM
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pull the carpet up by the firewall on the passenger side to expose the ecu. There is a little light on the ecu, it will blink. Long blinks = 10 and short blinks = 1. So, if there is 4 long blinks followed by 1 short blink that is 41. Check what code 41 means in a manual or online.
I payed $60 for an o2 sensor for my eg.
Does your car idle kinda rough? Notice less gas mileage?
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Old 24-Jul-2005, 10:08 PM
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nope everythin is normal idiling is the same as well as gas mileage
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Old 24-Jul-2005, 10:32 PM
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is the light on the ecu blinking? If so how many times?
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Old 24-Jul-2005, 10:38 PM
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i dont think ill be able to do it tonite
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Old 25-Jul-2005, 02:56 AM
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a dead o2 sensor doesn't cause the engine light to come on on older cars
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