09400-00235 PUMP ASSY, SUPPLY Denso Cross

D11N ( 74Z1-961)Introduction
The Multipoint Pressure Sensing (MPPS) version of the Automatic Ether Injection System (AEIS) provides a low oil pressure warning whose switchpoint varies with engine speed. The current low oil pressure warning on EMS has only a single switchpoint which may not signal a loss of pressure at higher engine RPM until the oil level is very low. The MPPS measures engine RPM and oil pressure and compares it to a switchpoint curve of oil pressure vs. RPM. It uses this to determine when a low oil pressure condition exists for any given RPM and signals it through the EMS panel. This feature provides better protection of the engine in the event of a loss of oil pressure when running at or near rated speed.This instruction provides the procedure to install the Multipoint Pressure Sensing System on the models shown above. This retrofit may be performed on a vehicle that already has AEIS, or may be done while performing an AEIS retrofit.
The following installation procedures are to be used in conjunction with Special Instruction, SEHS9173, "Installation of Automatic Ether Injection System (AEIS)". This instruction outlines the extra steps needed to install components of the MPPS system along with routing and clipping of harnesses.
Before starting the installation procedure, make certain that the machine disconnect switch is in the off position.Do not perform any procedure, outlined in this publication, or order any parts until you read and understand the information contained within.Reference: Service Manual, SENR4705-02 and Special Instruction, SEHS9173.Necessary Parts
The following parts list shows some part numbers in the deleted column. This means that these parts are called out on the Automatic Ether Injection System (AEIS) retrofit instructions but should not be ordered, since they are replaced by different parts for Multipoint Pressure Sensing (MPPS). This only applies if an AEIS retrofit is also being performed. Installation of 3E3778 Ether Control Group
* The 3E3778 Control Group is required for the MPPS system.If MPPS is being installed in conjunction with an AEIS retrofit, substitute the 3E3778 Control Group for the 9X5303 Control Group called out in the Automatic Ether Injection System Special Instruction, SEHS9173. Substitute a 3E3779 Film for the 9X4542 Film.If MPPS is being added to an existing AEIS system, check the electronic control box installed with the AEIS system to see if it is a 3E3778 or a 9X5303 Control Group. If a 9X5303 Control Group is installed, replace it with a 3E3778 Control Group and 3E3779 Film. Follow the control box installation instructions outlined in the AEIS installation Special Instruction. Be sure to install the 8R7105 Wire As. between the control and mounting plate to ground the control box to the frame. If an MPPS identification film is needed for a language other than English, refer to the following chart for the part number of the film for a specific language. Installation of 3E3530 Electronic Control Group [(PWM) Oil Pressure Sensor]
1. Remove the 6T4949 Oil Pressure Switch and the O-ring port adapter from the turbo oil adapter