1996 Tahoe, 5.7L 350 Vortec.
I'm getting O2 sensor P0131, and P0151 error codes when driving up mtn. passes. The error appears soon as I get close to 7000 ft. It happens from anywhere between 2500 rpm to 4000 rpm. On a consistent level. Soon as I clear it, it reappears.
I've replaced the O2 sensors a few years back, is it possible these have gone bad already? Or is there another issue causing the sensor codes?
I'm not getting any errors at lower elevations, just when driving 7000+ feet.
Any feedback is appreciated.
Thanks
I'm getting O2 sensor P0131, and P0151 error codes when driving up mtn. passes. The error appears soon as I get close to 7000 ft. It happens from anywhere between 2500 rpm to 4000 rpm. On a consistent level. Soon as I clear it, it reappears.
I've replaced the O2 sensors a few years back, is it possible these have gone bad already? Or is there another issue causing the sensor codes?
I'm not getting any errors at lower elevations, just when driving 7000+ feet.
Any feedback is appreciated.
Thanks
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