Test Description

Number(s) below refer to the step number(s) on the Diagnostic Chart .

1. 2. When checking The fuel quality, it exchanges to regular fuel. And start the engine.
2. 11. Inspect the following sensor and system. And even when DTC is not detected, check for each DTC.
   • Mass Air Flow (MAP) sensor, Engine Coolant Temperature (ECT) sensor, Crankshaft Position (CKP) sensor, Camshaft Position (CMP) sensor, Fuel system (High, Low), Ignition system.
3. 14. Check the actual fuel pressure does follow desired fuel pressure.
4. 15. Check the operation of fuel pump electrical and mechanical. And Check the fuel pump controller.

Fig 1: Identifying Diagnostic Chart (Fuel System Check (Low Pressure Line)) (1 Of 2)

Courtesy of ISUZU MOTOR CO.

Fig 2: Identifying Diagnostic Chart (Fuel System Check (Low Pressure Line)) (2 Of 2)

Courtesy of ISUZU MOTOR CO.