02 sensor errors

From : johnmm

Q: hi i have a 1997 dodge ram 1500 with 5.9l engine dual exhaust. in the past few weeks i have gotten several p0132 and p0138 errors. after clearing the code out the truck runs great for a couple of days. then another c.e.light. my mileage has been constant at 17mpg highway no changes. i have a haynes manual but it doesnt tell which 02 sensor is where. the codes break down to bank 1 sensor 1 hivolt and bank 1 sensor 2 hivolt. any info will be appreciated. thank you. john m. .