new guy needs check engine light help.

[2kawdexplorer]

I just bought a 2000 explorer with a 5.0 automatic, it has a check engine light on. I got the codes read and it had 2. They were P0155 and p1151 the guy said something about 02 sensors. What would you guys suggest the problem is. Thanks

 

[TerryS1980]

O2 sensor is probably bad. Get a Haynes manual.
P0155 - Upstream Heated Oxygen Sensor Heater circuit fault
P1151 - Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank No. 2

 

[Turdle]

Yup--bank 2 sensor 1 is bad--

It is the upstream sensor, on the driver side--lucky for you it is the easy one to get to--

 

[2kawdexplorer]

That was fast. Thank you both for your help, I'll get a sensor and try that.

 

[TerryS1980]

Not much to do when your offshore working for 21 days at a time.