DTC code C1226 typically indicates an issue with the wheel speed sensor circuit, often related to the rear left wheel. To fix this code, start by inspecting the wheel speed sensor and its wiring for any damage or corrosion. If the sensor appears faulty, replace it, and clear the DTC using a scan tool. After repairs, test drive the vehicle to ensure the code does not return.
It's an O2 sensor code
how do i fix a dtc code 42 in a 1995 chev 6.5 diesel?
http://www.aa1car.com/library/ford_lean_codes.htm
Either the PCM, or ECM will have another code in it. Diagnose and repair that code and the companion dtc set code will go away.Either the PCM, or ECM will have another code in it. Diagnose and repair that code and the companion dtc set code will go away.
Trouble code P1131 means: Lack Of HO2S11 Switches - Sensor Indicates Lean
Trouble code P1131 means: Lack Of HO2S11 Switches - Sensor Indicates Lean
Usually, replace the spark plugs and/or the #2 ignition coil.
Trouble code P0453 means: Evaporative Emission System Pressure Sensor/Switch High Input
dtccode.com : Evaporative Emission Control System Pressure Sensor High Input
you probably have a vaccum leak some where,from experience i would look at the intake
dtccode.com : Evaporative Emission Control System Pressure Sensor High Input
The DTC P0449 is: EVAP Emission Control System Vent Vlv/Sol Malf Straight out of my code book. Hope this helps you out.