O2 sensor heater circuit malfunction (bank 2 sensor 1).
This is the O2 sensor located in the header pipe directly after the exhaust manifold on the passenger side of the 4.3L engine. If the wiring to that sensor looks okay, more than likely that sensor needs to be replaced.
call the dealer and get the code....
Trouble code P0325 means:Knock sensor 1 circuit malfunction
Code P0174 is System too Lean (Bank 2)
Trouble code P0186 means: Fuel Temperature Sensor B Circuit Range/Performance
Trouble code P0155 means: O2 Heater Circuit (Bank 2, Sensor 1)
Trouble code P0155 means:O2 sensor heater circuit malfunction (Bank 2 Sensor 1)
Trouble code P0155 means:O2 sensor heater circuit malfunction (Bank 2 Sensor 1)
p0155 means O2 sensor, still looking for p1300 cant find it.
Trouble code P0155 means: O2 Heater Circuit (Bank 2, Sensor 1)
It means the crankshaft and camshaft sensors arent correlated. Which basically means your distributor isnt timed correctly.
knock sensor
it a transmission slipping code