Rail Pressure Deviation - Mahindra Maxximo Mini Van Vx 2012 Diagnostic Manual

Diagnostic Manual
MAXXIMO MINIVAN
Sl No DTC
1 P1492
2 P1493
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

The rail pressure deviation is more against the expected pressure
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
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VX

RAIL PRESSURE DEVIATION

Description
maximum positive deviation of rail pressure exceeded
maximum positive deviation of rail pressure exceeded concerning set value PCV
MAN-00183
June 2012
Probable Causes

Fuel filter clogged

Electric pre supply
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
Rev
/ 1
pump
78