OBD Trouble Code: P1151 Lack of HO2S-21 Switch, Sensor Indicates Lean
PO355 doesn't seem to be much info maybe someone who has had that one will reply back or Just go to Autozone its free. and they tell you possible ways to fix it Here's a little something to help break the code down
The first character identifies the system related to the trouble code.
P = Powertrain
B = Body
C = Chassis
U = Undefined
Second Digit - Code Type: The second digit identifies whether the code is a generic code (same on all OBD-II equipped vehicles), or a manufacturer specific code.
0 = Generic (this is the digit zero -- not the letter "O")
1 = Enhanced (manufacturer specific)
Third Digit - Sub-System: The third digit denotes the type of sub-system that pertains to the code.
1 = Emission Management (Fuel or Air)
2 = Injector Circuit (Fuel or Air)
3 = Ignition or Misfire
4 = Emission Control
5 = Vehicle Speed & Idle Control
6 = Computer & Output Circuit
7 = Transmission
8 = Transmission
9 = SAE Reserved
0 = SAE Reserved
Fourth and Fifth Digits: These digits, along with the others, relate to a particular problem...ie, p0171 equals system to lean bank
Mods-K&N CAI , True Dual Flowmaster 40, BBK Ceramic Shorties, 3.73 , 25% UDP, 3/8 Phenolic Intake Spacer ,Steeda Tri-ax, SCT Chip/Dyno Tune
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