False Intake Manifold Air Temperature Causing Shutdown on Certain G3412 Engines with EMCP 4.2 Panels{1920, 4490, 7490}
- Engine:
- G3412 (S/N: R7A1-UP; KAP1-UP)
- G3412C (S/N: SPY1-UP)
Introduction
The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.
Problem
The location of intake manifold air temperature (IMAT) switch does not allow for enough intake air to flow around sensing probe. That coupled with proximity of the turbocharger allows for additional heat soaking of the separate circuit aftercooler (SCAC) housing at the mounting location of switch.
Resolution
Disable digital input #1 on the EMCP 4.2 panel. The engine is still protected by the detonation detection if there is true high IMAT temperature.
- Click on the Configuration Tool Icon.
Show/hide table
Illustration 1 | g03850503 |
- Click on "EMCP 4.2"
Show/hide table
Illustration 2 | g03850504 |
- Click on "Digital Inputs".
Show/hide table
Illustration 3 | g03850505 |
- Select "Disable" in the "Digital Input #1 Usage Type" drop-down menu.
Show/hide table
Illustration 4 | g03850506 |
Show/hide table
Illustration 5 | g03850507 |
Caterpillar Information System:
2015/06/26 New Software Is Now used on Certain C11 Engines {7620}
2015/07/07 A New Liner Seal Is Used on Certain G3300 Engines {1201}
2015/07/07 Timer Rework for Overhead Lights in XQ2000 {1429}
Bench Test Procedure for Hydraulic Piston Pumps {5070} Bench Test Procedure for Hydraulic Piston Pumps {5070}
330F MHPU Mobile Hydraulic Power Unit Track Adjustment - Adjust - If Equipped
3512C Generator Set Engine Valve Mechanism Cover Base - Remove and Install
Incorrect Announcement of Battery Overcharged On Certain C4.4 and C6.6 Generator Set{4490, 751B} Incorrect Announcement of Battery Overcharged On Certain C4.4 and C6.6 Generator Set{4490, 751B}
3512C Generator Set Engine Crankcase Breather - Remove and Install
3512C Generator Set Engine Engine Oil Pan - Assemble
794 AC Off-Highway Truck Field Assembly Steering Lines - Install
Customer Interface for Certain G3600 A4 Engines {1901, 4490, 7451} Customer Interface for Certain G3600 A4 Engines {1901, 4490, 7451}
C4.4 and C7.1 Engines Speed Control - Test - Analog
C8.7 Marine Engine Inlet and Exhaust Valves - Remove and Install
C27 and C32 Industrial Engines Maintenance Interval Schedule
A New Gas Shutoff Valve Is Available For Certain G3306 and G3306B Engines {1259, 1704} A New Gas Shutoff Valve Is Available For Certain G3306 and G3306B Engines {1259, 1704}
3512C Generator Set Engine Accessory Drive (Front) - Remove and Install
Rebuild Instructions for the High Temperature Throttle Used on Certain G3500C and G3500E Engines {1269} Rebuild Instructions for the High Temperature Throttle Used on Certain G3500C and G3500E Engines {1269}
794 AC Off-Highway Truck Field Assembly Exhaust - Install
C4.4 and C7.1 Engines Service Tool Features
C27 and C32 Industrial Engines Product Description
C27 and C32 Industrial Engines Refill Capacities
C4.4 and C7.1 Engines Service Tool Error Identifiers
C27 and C32 Industrial Engines Overhaul Considerations
C280-08 Tier 4 Engine Engine Oil Coolers - Remove and Install