P2238

Hey guys

Anyone encounter this bad boy.

O2 Sensor Positive Current Control Circuit Low Bank 1 Sensor 1

Just replace the A/F sensor.

My scan tool is showing 3.3 on the voltage of the sensor ... so it seems to be working according to the voltage. The graph is reactive up and down and it looks very similar to the one on the driver side.

So when the truck starts up .... its good until i hit a long stretch of road. Once i hit that long stretch and slow down at a light or something.. it starts running rough like it wants to stall. When im driving it is fine... only when i slow down at a stop light does it run rough.

Should i just buy a new sensor and try it? What would yall do? I can post data if you want as i have a scan tool. I dont hear any vacuum leaks on the truck.. the maf sensor is also working according to the scan tool... at like 3.4 something...and reactive to snap throttle. I cleaned it with maf cleaner...

Thanks guys

J

 

What year and what engine do you have? Also, how many miles?