Code No. P0272: No. 4 Injector Contribution

DIAGNOSIS CONTENT

Solenoid valve in No. 4 cylinder exceeds maximum positive deviation

TROUBLE JUDGMENT

Check Condition

Beginning of injection period (BIP) can be detected.

Judgment Criterion

Deviation from expected BIP value is beyond maximum limit value.

PROBABLE CAUSE

Failed No. 4 cylinder injector
Failed electrical harness in No. 4 cylinder injector circuit

DIAGNOSIS CONTENT

Solenoid valve in No. 4 cylinder exceeds maximum negative deviation

TROUBLE JUDGMENT

Check Condition

BIP can be detected.

Judgment Criterion

Deviation from expected BIP value is below minimum limit value.

PROBABLE CAUSE

Failed No. 4 cylinder injector
Failed electrical harness in No. 4 cylinder injector circuit
Air entered into fuel

DIAGNOSIS CONTENT

Beginning of injection period significance of solenoid valve in No. 4 cylinder below limit

TROUBLE JUDGMENT

Judgment Criterion

BIP cannot be detected.

PROBABLE CAUSE

Failed No. 4 cylinder injector
Failed electrical harness in No. 4 cylinder injector circuit

(Refer to Symptom Procedure - No. 4 Injector Sensor System

.)