MANIFOLD 2093186 - Caterpillar

Engine: G3512 (S/N: WPP1-UP; WPR1-UP) G3516 (S/N: WPT1-UP; WPW1-UP)Introduction
Do not perform any procedure in this Special Instruction until you read this information and you understand this information.This Special Instruction provides the procedure that is necessary for installing the nitrogen oxide sensor on 1200 rpm and 1400 rpm G3512 and G3516 Engines.Air/fuel ratio control is required for this upgrade. The use of the remote advisor panel is highly recommended for this upgrade.References
Special Instruction, REHS2558, "Installation and Initial Start-Up Procedure for G3500 A3 Engines".
Troubleshooting, RENR9353, "Gas 3500 A3 Engines", "Nitrogen Oxide Sensor - Calibrate".
Informational Release Memo, PELJ1001, "G3512 & G3516 ADEM III Engine Upgrade Conversion to Nitrogen Oxide Sensor"Update Software
Ensure that the appropriate ADEM 3 flash file is correct for the air/fuel ratio control and for the nitrogen oxide sensor. Refer to Table 1.
Table 1
G3500 Flash Files    
Flash Files (1)     G3516     G3512    
317-5317 317-5319    
( 1 ) The flash files can be downloaded from the Service Information System (SIS).Required Parts
Table 2
Engine Control Wiring    
Engine Wiring Gp     G3516     G3512    
Part Number Qty     Part Number     Qty    
305-4550 Engine Harness As 1     305-4551 Engine Harness As     1    
Temperature Sensor Gp     243-5752 Temperature Sensor Gp     1     243-5752 Temperature Sensor Gp     1    
310-4796 Temperature Sensor Gp 1     310-4796 Temperature Sensor Gp     1    
5N-2126 Adapter 2     5N-2126 Adapter     2    
318-5027 Sensor Harness As 1     318-5025 Sensor Harness As     1    The parts that are listed above must be changed for the existing ADEM 3 engine wiring. Refer to Table 2 for the required parts for your application.
Table 3
Updates for the Air/Fuel Ratio Control    
    G3516     Qty     G3512     Qty    
Nitrogen Oxide Sensor Mounting Gp     341-9401     1     341-9401     1    
Nitrogen Oxide Sensor Wiring Gp     308-3821     1     308-3821     1    
AFRC Conversion Gp     325-6491     1     325-6490     1    If the engine is currently equipped with air/fuel ratio control, refer to Table 3 for the required parts for your application.
Table 4
Updates for the Air/Fuel Ratio Control    
    G3516     Qty     G3512     Qty    
Nitrogen Oxide Sensor Mounting Gp     341-9401     1