ELECTRONIC TECHNICIAN (ET) TROUBLESHOOTING - Continued
Injection Actuation Pressure Test.
System Operation Description:
Use the steps that follow to check the operation of the HEUI fuel system. Circle the appropriate answer in the
Results section of each test step. Complete all of the test steps that are in this procedure. Figure 6 shows the
locations of the left-side engine components referenced in this test.
The following symptoms may occur if there is a problem with the HEUI fuel system:
The engine cranks but the engine will not start
The engine runs rough.
The engine is erratic or unstable at idle or running.
The following diagnostic codes might be currently active or logged:
164-E-00 High Injection Actuation Pressure
164-E-02 Injection Actuation Pressure signal erratic
164-E-11 Injection Actuation Pressure system fault