Re: O2 Sensor in 5 Hours?
Quote:
Originally Posted by leddzepp
With a po420 code there’s a good chance the catalytic converter is toast and changing the o2 sensor will not fix it. I hope that’s not the case here.
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correct, a P0420 code means the sensor is working-well was working- you need a new catalytic converter. i work in a muffler shop and it's common for people to replace the sensors first-google says so i guess-then clear the light and drive the car to run all the monitors and bingo cat code comes back.
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jerry moss
72 cheyenne super K20- tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,tow hooks,bumper guards,toolbox,aux. fuel tank,posi front and rear,plus other goodies!!! SOLD
69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies.
73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog.
77 K/5 cheyenne blazer-daily driver/beater. SON HAS IT NOW
BRENTWOOD,CALIFORNIA
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