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

running rich..huh?

Old 26-Jul-2007, 11:31 PM
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running rich..huh?

so awhile ago 4 months. i put on a header and the second o2 sensor wasnt longenough to reach,so i didnt put it on, of course i got the engine light,and figured it was the second o2 missing.anyway back to yesterday i put the second one in and erased the cel with a diagnostic tool. well the light came back on 2day/ i check the code and it says im runnin rich. doesnt the ecu correct 4 this by itself? ya. there is no way to manually adjust it. so im wondering if the ecu is stuck on runnin like it was when there was 1 o2 sensor. unplug batt 4 an hour ,see wat happens? any suggestions plz,thx
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Old 26-Jul-2007, 11:34 PM
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sounds like you have no clue what your doing. (no offense)

It's smart that you put your o2 sensor back in. What code # do you have? I would just reset the ecu and let the computer re-learn itself. Let it idle for 15-20 minutes DONT touch the accelerator. It'll re-learn itself. If it continues to occur, you need a datalogger, first thing I would check are the o2 functions since you dinkered with them. Or it may be unrelated, like an open injector, bad fpr, etc..
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Old 26-Jul-2007, 11:42 PM
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uumm no offense taken,,but ya it does sound like i no what im doing.did the data logger thats how i knew i was runnin rich, unplug the batt isnt that how u reset the ecu? checked the o2 sensors with the dattalogger, they were fine. so ,open injector good call,also fuel pressure reg,ill chek aswell.thx.
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Old 26-Jul-2007, 11:44 PM
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oh ya,,it was code -45. done by jumping the wire under passenger side. also on dattalogger i beleive it was p0-179,, maybe cant remember. but they both said runnin rich.
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Old 26-Jul-2007, 11:47 PM
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i highly doubt you know how to check oxygen sensor function...

did you change the condition to see if they were reading the proper voltage?
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Old 26-Jul-2007, 11:49 PM
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plz get off your high horse,. no offence.
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Old 26-Jul-2007, 11:51 PM
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anyway ill check it at the shop 2morro. thx 4 the suggestions.
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Old 27-Jul-2007, 09:39 AM
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Originally posted by antrmo
plz get off your high horse,. no offence.
im just speaking the truth brotha. I know you dont know how to check o2 function, so why lie and say you did? Chances are its your o2 anyways, so why say they're fine?

Either way goodluck.
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