[Shotimes] Codes for 93SHO

[Kevin & Cheryl Airth]

John:
 I answered this 2 days ago? Did you get the message?
.
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> Gentleman, I had my mechanics pull codes on my 93 ATX since I was getting
an
> occasional Check Engine light.  After reading the site here, I guessed O2
> sensor, and the 177 code did come up.  There was also a 76 code, and since
it is
> not a 3 digit code I was not sure what this was,  thought it might have
meant
> 176, also for O2 sensor, but was hoping someone could shead some light on
this.
>  Also, should I change the sensor 1 at a time, starting with the easier
one,
> or does the 177 tell us which O2 sensor is likely bad, front vs. rear?
Thanks
> for the help.
> John
> 93 ATX