Ford Code P117B is an engine diagnostic trouble code that is related to the exhaust gas temperature sensor correlation for Bank 1. This code is triggered when the powertrain control module (PCM) detects a difference in temperature among the three exhaust gas temperature (EGT) sensors that is greater than 25°C (45°F). This code can be caused by a variety of factors related to the EGT sensors, the engine, and the exhaust system. To diagnose the issue, it is important to understand the possible causes and solutions. The following table outlines the causes and solutions for Ford Code P117B.
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Causes and Solutions for Ford Code P117B
| Cause | Solution |
|---|---|
| Failed EGT Sensor | Replace the faulty EGT sensor |
| Improperly Calibrated EGT Sensor | Re-calibrate the EGT sensor |
| Faulty Wiring or Connectors | Replace or repair the damaged wiring and connectors |
| Defective PCM | Replace the PCM |
When a Ford vehicle’s computer system detects a discrepancy between the three exhaust gas temperature (EGT) sensors, it will trigger the code P117B. This code is an indicator of a problem in the system related to the exhaust gas temperature sensor correlation for Bank 1. The issue could be caused by a number of factors such as a failed EGT sensor, an improperly calibrated EGT sensor, faulty wiring or connectors, or a defective PCM. In order to address the issue and prevent further damage to the engine, it is important to understand the potential causes and solutions for Ford Code P117B. Possible causes and solutions include replacing a faulty EGT sensor, re-calibrating the EGT sensor, replacing or repairing damaged wiring and connectors, and replacing the PCM.
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Failed EGT Sensor
When a Ford vehicle’s computer system detects a discrepancy between the three exhaust gas temperature (EGT) sensors, it will trigger the code P117B. This code is an indicator of a problem in the system related to the exhaust gas temperature sensor correlation for Bank 1. One possible cause of this code is a failed EGT sensor. If the EGT sensor is faulty or damaged, it can lead to inaccurate readings and trigger the code. In this case, the solution is to replace the faulty EGT sensor.
Improperly Calibrated EGT Sensor
Another possible cause of Ford Code P117B is an improperly calibrated EGT sensor. If the EGT sensor is not calibrated correctly, it can cause inaccurate readings and trigger the code. In this case, the solution is to re-calibrate the EGT sensor. This can be done by a professional mechanic or through a recalibration tool if one is available.
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Faulty Wiring or Connectors
If the wiring or connectors associated with the EGT sensor are damaged or faulty, it can lead to inaccurate readings and trigger the code. In this case, the solution is to replace or repair the damaged wiring and connectors. This should be done by a professional mechanic.
Defective PCM
The final possible cause of Ford Code P117B is a defective PCM. If the PCM is defective, it can cause inaccurate readings and trigger the code. In this case, the solution is to replace the PCM. This should be done by a professional mechanic.
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Conclusion: Diagnosing and Resolving Ford Code P117B
Ford Code P117B is an engine diagnostic trouble code that is related to the exhaust gas temperature sensor correlation for Bank 1. This code is triggered when the powertrain control module (PCM) detects a difference in temperature among the three exhaust gas temperature (EGT) sensors that is greater than 25°C (45°F). To diagnose and resolve this issue, it is important to understand the possible causes and solutions. The causes and solutions for Ford Code P117B include replacing a faulty EGT sensor, re-calibrating the EGT sensor, replacing or repairing damaged wiring and connectors, and replacing the PCM. If you have received the Ford Code P117B, it is important to have the issue properly diagnosed and resolved as soon as possible to prevent further damage to the engine. Using the information provided in this article, you can diagnose and resolve Ford Code P117B quickly and effectively.