[Shotimes] Codes for 93SHO

[JerZSHO@aol.com]

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
97, welded