Thread: Code PO 138
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Old 01-22-2012, 02:27 PM
tempfixit tempfixit is offline
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Re: Code PO 138

Quote:
Originally Posted by joslinm View Post
S-10 1998, 4 cyl
Oxy sensor problem ???
Where is it?
Thanks
P0138ChevroletHO2S-12 (Bank 1 Sensor 2) Circuit High Input


Bank 1 is always the side that #1 clyinder is on, this case it is the drivers side. Sensor 2 iis after the catalytic convertor (downstream)
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