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Old 30 May 2009, 08:48 am
jim beam
 
Posts: n/a
Default Re: '93 civic failed emission or suspicious emision test ?

Tegger wrote:
> "robb" <some@where.on.net> wrote in
> news:LKydnT1nJZ2AubzXnZ2dnUVZ_qSdnZ2d@earthlink.co m:
>
>
> <snip>
>
>
>> I say it is original. I think it is the original.
>> Does honda service ever replace O2 sensor in any of there regular
>> service intervals ? I do not remeber ever seeing the O2 sensor
>> being replaced but i did take the car in for whatever the **BIG**
>> service intervals were ( ? 90K / 120K / 150K ? the numbers escape
>> my memory)
>>
>> Oh well, time to start replacing stuff.

>
>
>
>
> Did you even bother to read Steve W's post?
>
> There may be nothing at all wrong with your car, but there was LOTS wrong
> with the technician's actions durng the test.
>
>
>
>


i'm not sure i buy that - this guy's story doesn't add up. testing
machines won't accept a test unless the test protocol is followed
closely, and 2718rpm at 25mph is not first gear like the op alleges.
the machine checks for rpm's and won't accept if not in range. and not
only must they be in range, they must be relatively constant. if
they're not constant, the machine extends the test until they are and
held there for the requisite test duration.

bottom line - this is probably a valid test and a simple failure. given
that the op hasn't changed the sensor in 18 years, he probably hasn't
changed plugs or leads either - a much more likely cause of incomplete
combustion and high readings.
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