Delta P Sensor Test - Detroit Diesel Series 60 EGR Technician Manual

DDEC V TESTING

Delta P Sensor Test

Perform the following steps to check the Delta P Sensor.
1. Turn ignition On.
2. Connect either a Detroit Diesel Diagnostic Link® (DDDL) or a Diagnostic Data Reader
(DDR) to read the Delta P counts.
3. Record the Delta P counts.
[a] If the recorded Delta P counts are 86-135, verify that the Venturi ports are not
plugged and that the Venturi Tube-to-Delta P sensor, see Figure 10-1, are correctly
installed and are not damaged. Repair as necessary, verify repairs. If no problem
was found, proceed to step 3[b].
NOTE:
Reversed and damaged tubes and Venturi ports will have an adverse effect on engine
performance resulting in black exhaust smoke and engine surging.
[b] If the recorded Delta P counts are 86-135, visually inspect the delivery pipe for
damage and proper assembly. If no damage or improper assembly were detected,
perform a VPOD Output Pressure Test.
[c] If the recorded counts were not within a range of 86-135, replace the Delta-P Sensor
and verify repairs. Proceed to TEST D.
10-14
All information subject to change without notice. (Rev. June 2005)
7SE60 0506 Copyright © 2005 DETROIT DIESEL CORPORATION