What happens if a Toyota knock sensor goes bad?
These knock sensors are super sensitive, but usually don’t go bad. They’re also super expensive. You have either a bad wiring harness or a bad knock sensor, there is no CEL if it determines a knock. Start by checking the sensor for tightness. You’d need an oscilloscope to test it’s function, though.
When does no knock sensor 2 signal to ECM?
No knock sensor 2 signal to ECM with engine speed between 2,000 rpm and 5,600 rpm. gas mileage usually goes down when this happens a lot and ECU falls into a limp mode because of it every time (until you cycle ignition).
Can a knock sensor detect inaudible to human ear knocks?
I think that knock sensors can detect inaudible to human ear knocks (pre-ignition detonation), you won’t hear that, you will just feel effects of it when ECU reacts to those and retards timing or goes into a limp-mode.
What are the knock sensors on a Camry?
For the ’92-’93 V6 Camry which has OBD I, the error codes related to knock sensors are listed below. 52 = Knock Sensor signal, left bank (front, nearest radiator). No number 2 knock sensor signal to ECM for 2 crank revolutions with engine speed between 1,600 and 5,200 RPM. 53 = Knock control signal.
How to replace knock sensor on 3VZ Fe V6?
Disconnect the banjo bolt (reassembly torque 11 ft-lb) fuel connection to the cold start injector, and the vacuum line going to the vacuum motor. Set it aside as shown and remove the gasket. Also disconnect the rubber hose going from the PCV valve to the nipple on the underside of the intake plenum.
Is the knock sensor on a Chevy S10 4cyl compatible?
Apparently that is standard procedure in many shops when doing head gaskets on this engine. That being said, I researched to find a way around pulling the engine back apart. What I found was someone had done some research and claimed that the displacement of this 3VZE engine was similar to a Chevy S10 4cyl and that the knock sensor was compatible.