EDGE-CUTTING 3170997 - Caterpillar

Table 3
Required Tooling
8T-7860 Connector
110-6349 Fitting as
8T-0855 Pressure Gauge
6V-3990 Coupler
Illustration 1 g02023390
(1) Fuel temperature sensor
(2) Fuel sampling port
(3) Fuel pressure sensor
(4) Fuel filter base
Table 4
Engine RPM Fuel pressure from Cat ET Fuel pressure from the mechanical gauge
800
1800 Note: Do not use the fuel sampling port (2) for measuring the pressure. Follow the steps below.
Table 5
Troubleshooting Test Steps Values Results
4. Check the Fuel Pressure Sensor
A. Record the fuel pressure from Cat ET. Record the data in Table 4.
B. Remove fuel pressure sensor (3).
C. Install an 8T-7860 Connector into the port of the pressure sensor (3).
D. Install the 110-6349 Fitting as onto the 8T-7860 Connector.
E. Install an 8T-0855 Pressure Gauge onto a 6V-3990 Coupler.
F. Install the 6V-3990 Coupler onto the 110-6349 Fitting as.
G. Record the fuel pressure on the pressure gauge. Record the data in Table 4.
Fuel Pressure Sensor
Result: The gauge value of the fuel pressure is within 137 kPa (20 psi) of the fuel pressure reading shown in ET.
Proceed to Test Step 5.
Result: The gauge value of the fuel pressure is not within 137 kPa (20 psi) of the fuel pressure reading shown in ET.
Replace the pressure sensor. Reset all active codes and clear all