Got a PO 135 code O2 sensor heater circuit bank 1 sensor 1 and a PO 341 Sensor A circuit Range/Performance Bank 1 or single sensor.

I replaced the O2 sensor and a mechanic replaced the camshaft position sensor. Mechanic also said he did a "heat test converter" and found no problems.

I attempted several resets and the mechanic said he did the recommended reset, yet the engine light stays on and the two codes continue to display even after being deleted. Prior to the camshaft sensor being replaced, gas mileage is running around 18 mpg.

Definitely stumped.

WSBowles