What is the reason for increased fuel consumption after replacing the camshaft sensor?

[Cindy]

Replacing the camshaft sensor may lead to increased fuel consumption due to potential changes in the ignition timing. Camshaft Sensor: The camshaft position sensor is a sensing device, also known as a synchronization signal sensor. It serves as a cylinder identification and positioning device, providing the ECU with camshaft position signals, which are the primary control signals for ignition. The function of the camshaft position sensor is to collect the position signals of the camshaft and input them into the ECU, enabling the ECU to identify the top dead center of cylinder compression. This allows for sequential fuel injection control, ignition timing control, and knock control. Ignition Advance Angle: The angle through which the crankshaft turns from the start of ignition until the piston reaches the top dead center.

[DeSimon]

As someone who frequently deals with car maintenance, I've seen many cases where fuel consumption increases after replacing the camshaft sensor. This is often due to improper installation of the new sensor or a model mismatch, causing the engine computer to misread the camshaft position signal. Signal deviation can delay ignition timing, leading to incomplete fuel combustion and increased fuel consumption. Sometimes, accidentally touching components like the mass airflow sensor or oxygen sensor during installation can disrupt the entire system. It's advisable to promptly return to the repair shop for a recheck to see if the connector is loose or the sensor itself is faulty, and also inquire whether the computer needs to be reset. Don't underestimate this issue—higher fuel consumption not only costs more money but may also cause emissions to exceed standards, affecting environmental protection. During routine maintenance, don't overlook these small components; regular checks can save a lot of trouble.

[NoraMarie]

After driving for most of my life, I can tell you that increased fuel consumption after installing a new camshaft sensor is quite normal. It's mostly due to poor-quality parts or improper tightening, causing inaccurate signal transmission. The engine then misinterprets the valve position and ends up injecting more fuel. My neighbor's car had this issue—the computer wasn't reset after replacing the sensor, and it took a few hundred kilometers to normalize. You might want to check if the new sensor's connector is loose or use a simple tool to read the fault codes. If that doesn't work, take it to a trusted mechanic to sort it out. Don't delay, or else engine carbon buildup will worsen the problem. Always pay attention to such minor faults and address them early to keep your car running smoothly and fuel-efficiently.

[AndrewMarie]

As a car enthusiast who often works on my own vehicle, I encountered high fuel consumption after replacing the camshaft sensor. Possible causes include incorrect sensor model or improper installation, where faulty signals cause the ECU to inject excess fuel. I've found that aftermarket parts tend to cause issues more easily. After reinstalling, disconnecting the car battery for ten minutes to reset the system usually solves the problem. Using an OBD scanner to read trouble codes can save hassle. For prevention, always use OEM parts and check tutorials before starting repairs.