What causes a knock sensor fault?
The first reason for a damaged knock sensor could be the illumination of the check Engine Light. It can even go bad if you are removing the knock sensor in the wrong way. If you push the connectors the wrong way this can cause the sensor to go out of alignment and break fragile parts.
What happens when a knock sensor is bad?
A bad knock sensor may also not let the engine accelerate properly while driving on the highway, and cause the vehicle to lose fuel mileage. Once the computer realizes the knock sensor is not working properly, your vehicle will most likely lose power.
What does a knock sensor do on a Subaru Outback?
SUBARU knock sensor – what is it? The Subaru knock sensor is a device that outputs a signal that is read by the ECU (engine control unit) to determine if engine knock is present. If the ECU believes it is detecting engine knock, it then retards the ignition timing until knock is no longer detected.
What happens if your knock sensor is faulty?
Basically, if you get that code then the knock sensor is likely faulty. There may be a wiring or connector problem, so take a look at those before ordering a new knock sensor. When that code is set, the ECU will retard timing to some very conservative setting to protect the engine. The car will have no power and bad fuel economy.
What does the p0326 code on the Subaru knock sensor mean?
P0326 Knock Sensor Circuit Performance (might not be applicable to Subaru’s). These codes mean the ECU has detected an electrical issue with the knock sensor circuit. It does not mean the ECU is detecting knock.
Where is the knock sensor on a Subaru H6?
The typical location on a SUBARU vehicle is on the engine block somewhat near the throttle body. The photo at the right shows the typical SUBARU knock sensor location. On H6 engines the location is somewhat different.