Thursday, August 13, 2015

Throttle Position Switch

Throttle Position Switch type sensors are very basic and are rarely used on the modern engine. They detect when the throttle is at full throttle or at idle. This particular throttle switch is a two position sensor and has only three pin outs. Another type is a three position sensor making it a four pin out switch, this gives the driver that extra gradual throttle response for better economy. These are both also adjustable, to ensure optimum operation and also good economy.
From zero to fifteen degrees, the ohm reading is at 0.5ohm. At fifteen degrees, the resistance shoots to an overload reading (O.L.). As the angle increases, up to seventyfive degrees resistance stays in overload (O.L.). From seventyfive degrees the resistance is back in range, at 0.5ohm.

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