KA\SR Sensor Listing

[-s14-]

I'm compiling a list of all the sensors in an KA/SR engine, their location, and purpose for my own usefulness and thought Id turn to you wisemen for a little fill-ins. These are according to a 95 DOHC KA24DE but I'm guessing that they'd be roughly the same for an SR of this generation only including turbo equipment. I know I'm missing a few but heres what I have so far:Oxygen Sensor - Mounted in exhaust system. Provides a rich/lean reading of exhaust gasses to ecu.Coolant Temperature Sensor - Located on left side of cylinder head (standing outside facing front of car) under intake manifold and meausres coolant temperature, duh.Intake Air Temperature Sensor - In air cleaner housing. Measures intaken air temperature.Mass Air Flow Sensor (MAFS) - Located between air cleaner housing and intake tube/piping. Directly measures amount of air flow to the engine.Absoulte Pressure Sensor (MAP) - In abbreviation, "M" standing for manifold. Connected to MAP/BARO (manifold absolute pressure/barometer) solenoid valve by pressure hose and detects the ambient barometric pressure and intake manifold pressure.Throttle Position Sensor (TPS) - Located on side of throttle body and monitors throttle plate movement.Camshaft Position Sensor/Cam Angle Sensor (CAS?) - Inside of distributor housing and monitors engine speed and piston position.Crankshaft Angle Sensor (CRAS) - Attatched to transmission housing and detects fluxuations in the engine's revolutions.

Thats all I have but right away, I know I'm missing the Knock Sensor which I dont know anything about, and an EGR Temp Sensor which I'm guessing monitors recirculated exhaust gas temperatures and is somewhere under the intake manifold with the other EGR solenoids & hose routings. Everyone, please add to what I've got already and maybe correct anything I've gotten wrong. Thanks a lot.Chris

[SpeedRacer1]

http://www.silviaaustralia.com/techinfo.asp

Go there, download the SR20DET service manual and look on page 147 (or the entire EC engine control system for that matter). You'll learn all you need to know about the sensors there.

PS: the knock sensor(pg154) measures the knocking of the engine from things such as misfiring.