Jan 13, 2011 · Got a p0154 No circuit No activity code, light on.. and sometimes the truck feels like its stuttering.. also got random misfire codes. ive been searching around and the general idea is.. …

Dec 6, 2010 · About a week later the same circuit tripped another P0154 fault. So thinking I may have a bad circuit I took the O2 sensor I removed from blank 2 and put it in bank 1.

Aug 31, 2012 · My 1999 Chevrolet K1500 keeps throwing the same three codes. 1. P0134 Bank 1 Sensor 1 2. P0154 Bank 2 Sensor 1 3. P0155 Bank 2 Sensor 1 Can anyone please help, is the …

Nov 12, 2012 · Hello all, I have been getting the check engine light on here lately. been getting code P0174 a few times last week, and today I got P0171 and P0174 which translates to system too lean …

Aug 29, 2016 · The ECM sends a heater voltage to the O2 sensors to enable them to sense the O2 levels in the exhaust. I would look for blown fuse or broken wire in the harness before or at the …

I have a 99 suburban K2500 4x4 with the 7.4L. I have ran a couple of different code readers to try and find out what is causing my engine to run rough and all they are telling me is the engine is running …

May 7, 2024 · P0154 Heated Oxygen Sensor Circuit insufficient Activity Bank x (cut off photo) sensor 1 He said there were more but stopped texting them to me and said "the computer was at fault and no …

Jun 24, 2010 · HO2S Slow Response DTC P0134 or P0154 HO2S Circuit Insufficient Activity DTC P0135, P0141, P0155, or P0161 HO2S Heater Performance DTC P0137 or P0157 HO2S Circuit …

Oct 28, 2019 · I have a 2007 Tahoe LTZ. I have recently replaced the negative battery cable, starter, alternator, ignition switch, and the fuel pump. not all at once but over the past few weeks. the …

Nov 18, 2017 · With vacuum leaks the truck would be running lean and throwing lean codes, not a code for no activity. When the truck changes the air/fuel ratio it expects to see the change via the O2 …