This intake manifold pressure sensor guide covers Cummins Fault Code 433 (PID P102, SPN 102, FMI 2, SRT 00-093) on the M11 CELECT Plus. The 7-page yellow-lamp document explains how a high manifold-pressure reading triggers a derate.
Official document details
| Brand | Cummins |
|---|---|
| Model coverage | M11 CELECT Plus (1995-98) |
| System / group | Intake Manifold Pressure Sensor Circuit |
| Fault code | 433 |
| PID / SPN | P102 / SPN 102 |
| FMI | 2 |
| Diagnostic lamp | Yellow |
| SRT | 00-093 |
| Pages | 7 |
| File size | 0.3 MB |
| Format | |
| Language | English |
| Source | Cummins fault code reference (TruckFaultCodes.com, 2017) |
Document table of contents
- Circuit description
- Component location
- Shop talk diagnostic notes
- Step-by-step troubleshooting
- Fault verification and clearing codes
manifold pressure sensor checks
Mounted on the air intake manifold, the sensor monitors boost pressure and reports to the ECM through the sensor harness; a pressure reading that is too high causes a derate condition. The ECM checks for this fault only at idle, so shop talk recommends using breakout cable part number 3824775 between the sensor and the engine harness connector with the key on, testing both connected and disconnected. It also suggests an Automated Cylinder Performance test or Single Cylinder Cutout test to find an injector problem, and looking for alternate fuel sources such as oil-filled charge air coolers or blown turbo seals. Troubleshooting opens by inspecting the circuit for tampering.
Applicable truck models
Coverage is the Cummins M11 CELECT Plus (1995-98) engine platform. Confirm sensor pinouts and derate thresholds on the official Cummins website.
Who needs this manifold pressure sensor manual
Technicians diagnosing boost-related derates, low power, or suspected sensor tampering on M11 CELECT Plus trucks use this test sequence.
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Applies to these truck models
This is the manufacturer document shared across 2 model families. It applies to:
- Cummins DTCs
- Cummins M11 CELECT Plus (1995-98)
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