Cummins M11 code 433 is the Cummins troubleshooting document for the Intake Manifold Pressure Sensor Circuit fault (PID P102, SPN 102, FMI 2, SRT 00-093). The intake manifold pressure sensor monitors intake manifold pressure and passes the information to the ECM through the sensor harness; excessive pressure causes a derate condition. It sets a yellow warning lamp and lists the exact conditions, causes, and step-by-step checks a technician follows.
Official document details
| Brand | Cummins |
|---|---|
| Model coverage | Cummins M11 CELECT electronic engines built 1990 to 1994 |
| System / Group | M11 CELECT (1990-94) |
| Fault identifiers | PID P102, SPN 102, FMI 2, SRT 00-093 |
| Warning lamp | Yellow |
| Pages | 7 |
| Format | |
| Language | English |
Document table of contents
- Circuit description
- Component location
- Shop Talk
- Step-by-step troubleshooting steps
- Fault code clearing and verification
Trucks covered by Cummins M11 code 433
This procedure applies to Cummins M11 CELECT electronic engines built 1990 to 1994. The procedure carries the Cummins fault identifiers PID P102, SPN 102, FMI 2, SRT 00-093 for reference and repair-time tracking. It is set by an intake manifold pressure value that reads too high at idle, which the ECM checks only at idle speed, and typical effects include a derate condition when intake manifold pressure reads too high at idle. For engine specifications and dealer support, see the official Cummins website.
Who needs this Cummins M11 code 433 manual
Heavy-truck technicians, fleet maintenance teams, and workshop owners diagnosing this fault use it to confirm the code before replacing parts. During diagnosis the intake manifold pressure sensor breakout cable, Part Number 3824775, is used for testing, and technicians should look for alternate fuel sources such as oil-filled charge air coolers. The step-by-step tree starts by reading active and inactive codes with the diagnostic tool, then inspects the harness and connector pins for bent, corroded, pushed-back, or expanded pins, flushing them with electronic contact cleaner Part Number 3824510 before any component is condemned. Test leads run around the bulkhead are used to isolate a faulty OEM harness, and the code is rechecked and cleared once the repair passes.
The full PDF is available in the DiagTechPro manuals library; a free account is required to download it.
Applies to these truck models
This is the manufacturer document shared across 2 model families. It applies to:
- Cummins DTCs
- Cummins M11 CELECT (1990-94)
Related manuals library
