Mahindra Maxximo Mini Van Vx 2012, Руководство по диагностике

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Diagnostic Manual MAN-00183
MAXXIMO
MINIVAN
VX June 2012
/
Rev
1
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© 2012 Mahindra &
Mahindra Ltd.
78
RAIL PRESSURE DEVIATION
Sl No DTC Description
1 P1492
maximum positive deviation of rail pressure exceeded
2 P1493
maximum positive deviation of rail pressure exceeded concerning set value PCV
NORMAL OPERATION
The ECU compares the rail pressure monitored by the rail pressure sensor against the expected pressure generated by PCV
(PCV controls the rail pressure based upon RPM and other parameters)
DTC Detecting Condition
Probable Causes

The rail pressure deviation is more against the expected pressure

Fuel filter clogged

Electric pre supply pump
malfunctioning

Choked fuel filter strainer

Defective fuel tank cap

Fuel leak on low pressure side

Injector stuck in open position

Leaking PCV

Worn high pressure pimp
LAMP STATUS
Engine check lamp continuously ON
FAULT REACTION
Engine low idle RPM set at 1200 .
The accelerator pedal will respond but the maximum RPM is set as 2000 with quantity limitations