Update mil codes

[john2456]

Hooked up OBD II scanner and it read PO155,which is O2 sensor heater circuit malfunction Bank 2, sensor#1. I reset the ECU and it has not come back on. Could bad gas or short have tripped the computer?? Car (2003 SRT with 20K miles). If sensor goes bad,is this an expensive repair ?? John

 

[LifeIsGood]

P0155 is the pre-cat passenger side O2 Sensor. I just replaced both of my O2 sensors. You can find them in the $35 to $100 range. I paid $74 for my pair (Denso 234-4076) delivered from RockAuto, but mine is a 2001. You'll need the Denso 234-4766. It lists for $40.79 from the same site. They can easily be replaced by getting under the viper.

 

[john2456]

Wow,good advice and glad to hear price is cheap. I thought this sensor precat would be in a tight spot to reach. Thanks alot !! John