The PACCAR P0471 turbine pressure sensor DTC bulletin provides diagnostic guidance for detecting pressure sensor deviation on MX Europe EPA 2004 engines. When the PCI ECU (D420) detects that measured pressure before turbine differs more than 0.36 bar from the average of other pressure sensor readings, the P0471 turbine pressure sensor fault is activated. This technical guide from PACCAR covers the complete diagnostic workflow and sensor testing procedures.
Document details and specifications — PACCAR P0471 turbine
| Brand | PACCAR |
| Model coverage | MX Europe Engines |
| System/Group | DTCs / MX Europe Engines (EPA 2004) |
| Publication number | M033069 |
| Revision date | 08.15.2017 |
| Pages | 2 |
| File size | 0.1 MB |
| Format | |
| Language | English |
Table of contents
- Set conditions and threshold parameters
- Diagnostic condition and ambient temperature limits
- Reset condition procedures
- Repair verification steps
- Pressure sensor failure analysis
- Additional diagnostic information
Applies to these models
This P0471 turbine pressure sensor DTC document applies to PACCAR MX Europe engines with EPA 2004 compliance. The bulletin addresses the pressure sensor before turbine (F826) used in the boost pressure measurement system. For information on PACCAR engine diagnostics and service, visit PACCAR official.
Who needs this PACCAR P0471 turbine pressure sensor DTC bulletin
Diesel engine technicians and PACCAR truck service centers require the P0471 turbine pressure sensor DTC bulletin to diagnose boost pressure circuit failures. Understanding the 0.36 bar deviation threshold and ambient temperature conditions helps mechanics distinguish actual sensor faults from environmental noise in diagnostic testing.
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