P242B - Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 3
WARNING: This page is about a different car, the 2008 Ford Pickup, 2008 Ford F550 Super Duty, 2008 Ford F450 Super Duty, and 2008 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
P242B - EXHAUST GAS TEMPERATURE SENSOR CIRCUIT RANGE/PERFORMANCE BANK 1 SENSOR 3
| Description: | The powertrain control module (PCM) monitors the exhaust gas temperature (EGT) sensor for a biased signal value. Following an 8-hour soak, the PCM records the EGT sensor temperature value at key ON, engine OFF. After several minutes of vehicle operation at vehicle speeds greater than 40.2 km/h (25 mph) the PCM calculates an expected key ON, engine OFF value. The PCM determines what the expected EGT value at key ON, engine OFF should have been based on inputs from other sensors. The test fails when the difference between the expected calculated value and the actual recorded value is greater than 40°C (72°F). | |||
| Possible Causes: |
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| Diagnostic Aids: | Compare the EGT PID to the ambient temperature on a cold vehicle. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory | |
| All | - | - | refer to PINPOINT TEST RC . | |