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Intake Manifold Pressure/Temperature Sensor – Engine Protection Circuit
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Overview
| CODE | REASON | EFFECT |
| Fault Code: 155 PID: P105 SPN: 105 FMI: 0 LAMP: Red SRT: |
Intake manifold air temperature signal indicates the intake manifold air temperature is above the engine protection limit. |
Power and/or speed derate and possible engine shutdown if engine protection shutdown feature is enabled. |
 Intake Manifold Pressure/Temperature Sensor Circuit
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Circuit Description
The intake manifold pressure/temperature sensor is used by the electronic control module (ECM) to monitor the temperature of the engine intake air. The intake air temperature is used by the ECM for the engine protection system, cold start aids, and timing and fueling controls.
Component Location
The intake manifold pressure/temperature sensor is located in the intake air housing.
Shop Talk
- Make sure the engine compartment temperature does not get too high (above 93.3°C [200°F]).
- Make sure the intake manifold temperature sensor is not located near any extreme heat sources.
- Possible causes:- Clogged, dirty, inadequate capacity air cleaner element – Intake restriction.
Refer to Troubleshooting Fault Code t05-155
Last Modified: 26-Oct-2010
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