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Hitachi excavator engine output power reduction

Jul 09, 2018

[fault analysis]

1 DTC:P0192(scintillation code 245) common-rail pressure sensor fault (low voltage)

(1) major fault phenomena:

The radial engine may stall.

Parliamentary output power decreases.

(2) standby mode:

Parallel rail pressure feedback control stop.

String limited injection quantity 2(multi-point injection stop).

(3) an EGR to stop.

Automation converts control to SCV mandatory drive.

(5) target 80 mpa.

2 DTC:P0193(scintillation code 245) common-rail pressure sensor fault (high voltage)

(1) major fault phenomena:

The radial engine may stall.

Parliamentary output power decreases.

(2) standby mode:

Parallel rail pressure feedback control stop.

String limited injection quantity 2(multi-point injection stop).

(3) an EGR to stop.

Automation converts control to SCV mandatory drive.

(5) target 80 mpa.

[extensive reading]

3 DTC:P0182(scintillation code 211) fuel temperature sensor failure (low voltage)

(1) main failure phenomenon: operating performance is affected.

(2) the standby mode: fuel temperature default setting (startup: - 20 ℃, the runtime: 70 ℃).

4 DTC:P0183(scintillation code 211) fuel temperature sensor failure (high voltage)

(1) major fault phenomenon: nothing special.

(2) the standby mode: fuel temperature default setting (startup: - 20 ℃, the runtime: 70 ℃).