Engine Mechanical problem
1998 Chevy S-10 V8 Two Wheel Drive Automatic
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i have a 98 s10 w/ lt1 from a firebird, well the otherday i had the exhaust done on it and now the truck isnot running right, it keeps acting like it wants to die. the guy said that one of the 02 sensors was bad, but it ran fine when i took it in to the shop. ant ideas?

well the otherday i had the exhaust done on it

What was done-could be very well be the snitcher O2 sensor that measures the oxygen content after combustion and reports this data back to the computer to adjust fuel during closed loop as needed.

well it was the o2 on the driverside down pipe i dont know if they damedged it or what but i had a spare layin around put it in and now drives fine