The driving rod position sensor in a 2000 Ford Focus is situated at the foundation of the motor block and there is a plastic cover that is done with everything. This has the occupation of observing where the driving rod is in its turn in the motor. The sensor can convey messages to Your ECU to permit it to accelerate or lessen the timing as needs be. This should be possible by adding or eliminating fuel and air timing to the admission and injectors. On the off chance that Your motor is running extremely improvise is generally an issue with this sensor. Generally when it begins to bomb You will get a check motor light on Your scramble which will tell You that the sign from it isn't getting to the ECU any longer.