3126B Petroleum Engine Caterpillar


Sensors and Electrical Connectors

Usage:

3126B Z2A

Table 1
Connector     Function    
J1/P1     ECM connector (70−pin)    
J2/P2     ECM connector (70−pin)    
J61/P61     Customer connector (40-pin)    
J63     Engine service tool connector    
J66     Customer supplied service tool connector    
J100/P100     Engine coolant temperature sensor    
J101/P101     Engine oil temperature sensor    
J103/P103     Intake manifold air temperature sensor    
J142/P142     Auxiliary temperature sensor    
J200/P200     Boost pressure sensor    
J201/P201     Engine oil pressure sensor    
J203/P203     Atmospheric pressure sensor    
J204/P204     Injection actuation pressure sensor    
J209/P209     Fuel pressure sensor    
J220/P220     Auxiliary pressure sensor    
J300/P300     Injector solenoid harness    
P400     Engine timing calibration    
J401/P401     Primary engine speed/timing sensor    
J402/P402     Secondary engine speed/timing sensor    
J403/P403     Throttle position sensor    
J500/P500     Injection actuation pressure control valve    
J800/P800     Engine coolant level switch    



Illustration 1g01123879

Components for the 3126B engine




Illustration 2g01125074

Sensor locations

(1) Engine coolant temperature sensor

(2) Injection actuation pressure sensor

(3) Boost pressure sensor

(4) Intake manifold air temperature sensor

(5) Engine oil temperature sensor

(6) Atmospheric pressure sensor

(7) Primary engine speed/timing sensor

(8) Secondary engine speed/timing sensor

(9) Injection actuation pressure control valve

(10) Fuel pressure sensor

(11) Engine oil pressure sensor

(12) Timing calibration port

(13) Electronic Control Module (ECM)

(14) J2 ECM connector

(15) Timing calibration probe connector

(16) J1 ECM connector

Caterpillar Information System:

C27 and C32 Engines Rear Gear Group - Time
3508B, 3512B and 3516B Generator Set Engines Crankshaft - Install
3508B, 3512B and 3516B Generator Set Engines Crankshaft - Remove
C0.5, C0.7, C0.7, C1.1/3011C, C1.5/3013C, C1.6 and C2.2/3024C/3024CT Industrial Engines and Engines for Caterpillar Built Machines Fuel System Secondary Filter - Replace
C0.5, C0.7, C0.7, C1.1/3011C, C1.5/3013C, C1.6 and C2.2/3024C/3024CT Industrial Engines and Engines for Caterpillar Built Machines Fuel System - Prime
3508B, 3512B and 3516B Generator Set Engines Engine Oil Pan - Install
3508B, 3512B and 3516B Generator Set Engines Engine Oil Pan - Remove
C32 Marine Engines Fuel System
C0.5, C0.7, C0.7, C1.1/3011C, C1.5/3013C, C1.6 and C2.2/3024C/3024CT Industrial Engines and Engines for Caterpillar Built Machines Water Pump - Inspect
C0.5, C0.7, C0.7, C1.1/3011C, C1.5/3013C, C1.6 and C2.2/3024C/3024CT Industrial Engines and Engines for Caterpillar Built Machines Turbocharger - Inspect - If Equipped
2004/12/01 Improved Alignment of a Coolant Tube {1380}
C9 Industrial Engines Cooling System
3126B Petroleum Engine Cooling System
Installation of 244-1090 Alarm Gp {7400, 7402, 7407} Installation of 244-1090 Alarm Gp {7400, 7402, 7407}
3500 and 3500B Engines Refill Capacities and Recommendations
C27 and C32 Engines Water Pump - Test
3500B High Displacement Generator Set Engines Alternator and Fan Belts - Inspect/Adjust/Replace
C7 On-Highway Engine Engine Oil Filter Base and Oil Cooler - Remove
345C MHPU Mobile Hydraulic Power Unit Hydraulic System Relief Valve (Swing)
2004/12/01 New Ignition Transformers are Used {1561}
C27 and C32 Engines Fuel System Pressure - Test
3500B and 3500 Marine Propulsion Engines with EUI Option Product Lifting
3500B and 3500 Marine Propulsion Engines with EUI Option Product Storage
3500B and 3500 Marine Propulsion Engines with EUI Option Refill Capacities and Recommendations
Back to top
The names Caterpillar, John Deere, JD, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
CH-Part.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only.