Injection Actuation Pressure Sensor

308

TM 9-2320-312-24-2

Troubleshooting Section

The injection actuation pressure sensor measures

Note: Personality Modules with a manufactured date

the pressure of the oil in the high pressure oil

before JUNE 99 require an electrical connector

manifold. The high pressure oil in the manifold is

for the injection actuation pressure sensor to be

used to actuate the injectors and the high pressure

disconnected in order for the "Injection Actuation

oil is used to control the fuel injection pressure.

Pressure Control Valve Driver Special Test" to turn

Fuel injection pressure is based on inputs from

off the driver for the injection actuation pressure

the sensors. The inputs are used by the ECM

control valve. If the connector J204/P204 for

for calculating the fuel injection pressure. The

the injection actuation pressure sensor is not

ECM uses the reading from the injection actuation

disconnected, the voltage test lamp will remain on

pressure sensor in order to control the operation of

when the special test is not active.

the injection actuation pressure control valve.

Results:

Yes

Repair: Replace the harness for the injection

actuation pressure control valve.

STOP.

Repair: Temporarily install a test ECM. Repeat

the test step. If this corrects the problem, then

reinstall the old ECM and verify that the problem

reoccurs. Replace the ECM if the problem

reoccurs with the old ECM.

STOP.

i01857920

Injection Actuation Pressure

g00725343

Illustration 129

Sensor - Test

location of the injection actuation pressure control valve

SMCS Code: 1925-081

System Operation Description:

Use this procedure under the following situation:

Use the following information in order to troubleshoot

the system when there is an active code:

164-02 Injection Actuation Pr Sensor Erratic (15)

Note: This procedure can check the accuracy of

the injection actuation pressure sensor against a

pressure gauge.

The following background information is related

to the following procedure: