hogboy

truck threw that p 0602 code have no idea what that is any help greatly appreciated.

cbrahs

THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 14-002-02 REV. A,
DATED JULY 22, 2002, WHICH SHOULD BE REMOVED FROM YOUR FILES. ALL
REVISIONS ARE HIGHLIGHTED WITH **ASTERISKS** AND INCLUDE THE ADDITION
OF THE CUMMINS 24-VALVE 5.9L HIGH OUTPUT ENGINE.
SUBJECT:
Tampering With VP44 Fuel Pump On Cummins Diesel Engine
MODELS:
1998-2002 (BE/BR) Ram Trucks
NOTE: THIS BULLETIN APPLIES TO 1998-2002 (BE/BR) RAM TRUCKS EQUIPPED
WITH THE 24-VALVE CUMMINS DIESEL ENGINE **(SALES CODE ETC AND
ETH)**.
DISCUSSION:
A number of the VP44 fuel pumps have been returned through the warranty process as a
result of tampering. Generally, the customer complains that the vehicle died while driving.
When diagnosed, there may or may not be Diagnostic Trouble Codes (DTC) present.
When DTC's are present, there may be one or more of the following:
DTC P Code Description
124 P0234 Turbo boost limit exceeded
146 P0217 Decreased engine performance due to engine
overheat condition
361 P0254 Fuel injection pump fuel valve current too high
363 P0251 Fuel injection pump mechanical failure fuel valve
feedback circuit
364 P1689 No communication between ECM and injector pump
module
375 P0602 ECM fuel calibration errorNUMBER: 14-002-08
GROUP: Fuel System
DATE: March 21, 2008
Figure 1 shows a view of the pump itself, which is located on the driver's side toward the
front of the engine (Fig. 1).
Figure 2 shows the area where performance enhancing equipment is being connected into
one or both of the two outboard wires that control the operation of the metering solenoid in
the fuel pump (Fig. 2).
Other type of devices either place a connector between the metering solenoid harness and
the upper connector on the pump, or replace/modify the plastic fuel pump control module
cover on top of the fuel pump.
Telltale evidence of tampering can be:
a). The seizure of the pump rotor, and/or cracked or overstressed pump cam ring.
b). The protective sleeve around the two wires may be rolled or cut back to gain access for
connection.
c). The overhead console information center (if so equipped) may read out unrealistic fuel
mileage numbers (30+).
d). The plastic rectangular cover and its attaching screws located on top of the fuel pump,
and used to close off the fuel pump control module, may show signs of tampering and/or
modification.
NOTE: AS PER WARRANTY BULLETIN D-00-16, “INSTALLING AFTERMARKET
ENGINE PERFORMANCE ENHANCEMENT PACKAGES OR COMPONENTS,
INJECTION PUMPS THAT HAVE BEEN TAMPERED WITH ARE NOT
WARRANTABLE”.
Fig. 1 VP44 FUEL PUMP
14-002-08 -2-

cbrahs

is your pump tapped? you got a box on there?

hogboy

Nah no box