How do you test a knock sensor with an ohmmeter?
Clip the multimeter lead to the knock sensor; connect the negative multimeter lead to a ground point, such as the negative battery terminal. Continuity should exist, and the multimeter should read more than 10 ohms. If there is no continuity, the sensor should be replaced.
Where is the knock sensor on a 98 Subaru Legacy?
The knock sensor is located under the left rear intake manifold runner (for cylinder No. 4), on top of the engine block, to the left of the engine. The knock sensor monitors engine vibration caused by detonation.
Can a knock sensor cause a misfire?
There are several other symptoms indicative of a knock sensor problem. The vehicle will often shake or vibrate and misfire when the engine is started. The engine may emit strong exhaust and burning smells due to the detonation in the cylinders.
What are the symptoms of a bad knock sensor?
Bad knock sensor symptoms 1 A failed knock sensor will register a trouble code and illuminate the Check Engine lamp (CEL), although some engines… 2 Misfire 3 Vibration, especially at highway speed 4 Thumping or knocking noise from the engine 5 Poor fuel economy and acceleration More
Is the Subaru knock sensor and what does it do?
And retarded timing equals loss of power and fuel economy. The Subaru knock sensor, especially from mid/late 90’s soobs, can develop a crack. It may or may not result in the MIL/CEL to come on. At the right is an image of a cracked Subaru knock sensor.
How do you disconnect a knock sensor?
Disconnect the wire harness from the knock sensor. Pull on the base of the harness where it meets the sensor. Clip the multimeter lead to the knock sensor; connect the negative multimeter lead to a ground point, such as the negative battery terminal.
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.