Using a DAVIE (DAF Vehicle Interface) or a Nexiq USB-Link, connect to the 9-pin J1939 diagnostic port.
Disclaimer: This article is for informational purposes only. DAF, Kompass, and Paccar are registered trademarks. Modifying engine software may void warranties and violate emissions laws in your jurisdiction. kompass daf c11 pdf
The Kompass PDF troubleshooting matrix points to: "Faulty Rail Pressure Limiting Valve or Stuck Suction Control Valve (SCV)." Using a DAVIE (DAF Vehicle Interface) or a
For owners, fleet managers, and heavy-duty mechanics, few things are as intimidating as a dashboard lit up with warning lights on a DAF CF85 or XF95 equipped with the legendary C11 engine (also known as the MX265 or PEG-engine). The core of resolving these issues lies in a critical, often misunderstood tool: the Kompass DAF C11 PDF . Modifying engine software may void warranties and violate
Your software shows idle rail pressure at 320 bar (too high) and throttle pressure stuck at 500 bar (too low).
The PDF guides you to run "Active Test 0x31 - SCV Cycling." You hear clicking. No click? The PDF instructs you to check voltage on pins 42 (ground) and 88 (power) of the EMS plug.
You locate the "Fuel Rail Pressure Monitoring" chart. The PDF states that at idle (750 RPM), rail pressure should be 250–300 bar . At full throttle, it should be 1,600 bar (for Euro 5).
This is awkward, but...
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