The automobile meaning of the engine C1262 Code is general meaning and it is not helping information. The general/automobile meaning of the code is C for Chassis Code Problem is controller area network wiring bus and modules. 1 for MFG – Manufacturer Specific. 2 for Accelerator Pedal Position (APP) Sensor 1 Performance. 6 for Control Module Throttle Actuator Position Performance and 2 for A/C System High Pressure High Temperature. The C1262 engine code seems a kind of chassis problem. The lifters can be distorted by unlocking an inner locking pin. The locking pin is disconnected by means of solenoids to modify oil compression fed into the lifter.