Component Location
General Description

Injectors jet out high pressure fuel caculated by ECM/PCM to each cyliders. Direct and separated injections improve fuel efficiency and engine power.

DTC Description

If there is Short to battery in injector #4 circuit, ECM/PCM sets DTC P0271.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

•

Circuit continuity check, high

1.

Poor connection

2.

Short to power in control circuit

3.

Injector

Enable Conditions

•

Engine speed >80

•

Battery voltage = 8~15V

Threshold Value

•

Circuit high

Diagnostic Time

•

Continuous

MIL ON Condition

•

3 driving cycle

Specification

Coil Resistance (Ω)

Temp (℃)

Temp (℉)

1.25

20

68

Diagnostic Circuit Diagram
Signal Waveform and Data

Fig 1) Normal waveform of ING at idle.

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