Rail Pressure Negative Governor Deviation Error In Metering Unit Mode - Mahindra Bolero Maxitruck Plus BS III 2013 Diagnostic Manual

DIAGNOSTIC MANUAL
P1B88
RAIL PRESSURE DEVIATION
EMS ECU compares the rail pressure monitored through the rail pressure sensor against the
expected pressure generated due to HPP
NORMAL OPERATION

Ignition ON

The ECU compares the rail pressure monitored through the rail
pressure sensor against the expected pressure generated due
to HPP ( Based on MPROP position and the engine RPM and
coolant temperature )
DTC DETECTING CONDITIONS

Ignition ON

EMS ECU supply voltage 8-16V

The negative governor deviation is less than the range and
the set point for fuel flow thru metering unit is lesser than the
limit
DTC REACTIONS

Torque Limitation

Engine Check lamp continuously ON
HEALING CONDITION

Ignition Off/On
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manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document,
are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd.,
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RAIL PRESSURE NEGATIVE GOVERNOR DEVIATION ERROR IN METERING UNIT
DTC INFORMATION
EMS
MODE
PROBABLE CAUSES OF FAILURE



MAN-00226
MAY 2013/Rev 1
M prop valve struck
Zero delivery throttle
clogged
Metering unit without power
due to electrical error
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