P1229 TOYOTA: OVERPRESSURE FUEL SYSTEM
POST UPDATED IN February, 2023
P1229 TOYOTA: OVERPRESSURE FUEL SYSTEM
The fuel supply is sent through the pressure lines, which are appropriate for keeping the engine operating within the proper levels. If a failure occurs within this system, the system can become overloaded, and as a result, the fuel pressure can increase beyond the ideal range.
In the case of the fuel systems in Toyota vehicles, they are controlled by a fuel pressure regulator. When fuel supply system failures occur, it is usually due to wiring problems.
The P1229 OBDII fault code is set when the ECM (Engine Control Module) detects that the actual fuel pressure has exceeded its maximum allowable level.
Reasons for setting the P1229 OBD2 diagnostic code are:
To solve the DTC P1229 OBDII code, take into account the following suggestions: