P1236

DTC P1235 High Pressure Fuel Pump Circuit
DTC P1236 High Pressure Fuel Pump No. 2 Circuit

DESCRIPTION

DTC Detection Condition:

Monitor Strategy:

Typical Enabling Conditions:

Typical Malfunction Thresholds:

The fuel pump for high pressure is attached to the insulator, which is attached to the cylinder head cover. The pump activates according to the position of the cam on the intake side camshaft (bank 1 and bank 2). The fuel pump for high pressure increases the pressure of the fuel supplied from the fuel pump in the fuel tank to 4 to 13 MPa (40.8 to 132.6 kgf/sq.cm, 580 to 1885 psi) according to the operating condition, and it feeds the fuel to the fuel delivery pipe.

Wiring Diagram:

Step 1-2:

Step 3:

Step 4:

INSPECTION PROCEDURE

HINT: Read freeze frame data using the intelligent tester or Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.