0102-07 Boost Pressure not responding
Conditions Which Generate This Code:
The Engine Control Module (ECM) detects the following conditions:
- The signal for boost pressure has been more than 172 kPa (25 psi) for more than 0.5 seconds.
- The fuel rate is 80 percent of the maximum value for the current torque map.
- 102-03 Boost Pressure voltage high is active.
System Response:
The current to the wastegate solenoid is turned off. The boost pressure will be set to 0 kPa.
"DIAG" will be displayed next to the status for boost pressure on the Caterpillar Electronic Technician (Cat ET).
The engine may experience low power when this diagnostic code is active.
This diagnostic code could be caused by a plugged air line for the wastegate, a problem with the turbocharger, or a pinched turbocharger line. Also, this diagnostic code could indicate tampering with the wastegate.
Test Step 1. Perform the following diagnostic procedure: Wastegate Solenoid - Test
Results:
- OK - STOP
Caterpillar Information System:
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