Navistar MaxxForce DT, Руководство по диагностике, Страница: 55 / 197

DIAGNOSTIC MANUAL
MAXXFORCE ® DT, 9 AND 10 SERVICEMAXX™ SNAPSHOTS
4.1. GRAPH 1: AIR MANAGEMENT SYSTEM TEST (GOOD)
NOTE – Colors in the graphs are used for clarity only and will not necessarily match the colors you will
see in your ServiceMaxx™ snapshots
1. Mass Air Flow (MAF) Mean Value
(MMV)(mg) [Green]
2. Intake Manifold Pressure (IMP)
(psi) [Red]
3. Exhaust Gas Recirculation (EGR)
valve position (percent) [Purple]
Figure 5 Graph 1: Air Management System Test (Good)
Graph Analysis:
This graph shows normal operation of the Air Management System (AMS) during the Air Management Test
(AMT). The AMT gives pass or fail results based on the difference of flow in MAF Mean Value (MMV). It allows
the user to validate the AMS by monitoring the effects each actuator has on Intake Manifold Pressure (IMP).
IMP is normally between 2 psi (14 kPa) to 6 psi (41 kPa)
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