P0038 HO2S Heater Circuit High Voltage Bank 1 Sensor 2
If you are getting the same code as 1/2 o2 sensor. That 1 would be the odd bank of the firing order and 2 would be the downsteam o2 sensor. Inspect the sensor and replace it if needed.
All Star
Joined: Aug 2010
Posts: 843
Likes: 1
From: Toronto Canada
the O2 sensor is comparing the amount of Oxygen inside and outside the engine. If the outside of the sensor should become blocked, or coated with oil, sound insulation, undercoating, antifreeze, or mud.
wasnt your year or model Ram but I had a truck once that threw this code. Ended up being the vent hole was plugged with mud, truck was on alot of Worksites.
In that case it was a easy fix: little drillbit to clear the hole and spray off the underside of truck a little more. Now yours may not have a hole thats visible it may be shielded
Fingers crossed its something silly like this on yours
if sensor is working fine tho and has a higher than normal voltage will mean a rich condition, does your truck have soot around the tailpipes?, slight miss at speed?, need an Air filter maybe? who knows?
im with MT inspect/test sensor and go from there.
wasnt your year or model Ram but I had a truck once that threw this code. Ended up being the vent hole was plugged with mud, truck was on alot of Worksites.
In that case it was a easy fix: little drillbit to clear the hole and spray off the underside of truck a little more. Now yours may not have a hole thats visible it may be shielded
Fingers crossed its something silly like this on yours
if sensor is working fine tho and has a higher than normal voltage will mean a rich condition, does your truck have soot around the tailpipes?, slight miss at speed?, need an Air filter maybe? who knows?
im with MT inspect/test sensor and go from there.
