Many carburettors and throttle bodies sourced from motorcycles come with a throttle position sensor fitted as standard. Such units are ideal for use in car engine applications where an ECU will be used that requires a TPS signal for load sensing. This guide is intended to aid the user in determining the connections on the TPS.
The majority of sensors have 3 connections: Live (+5v), Ground (-ve) and a signal wire (the load sensing signal). During installation the function of each of these connections must be identified. This guide details a few of the most common sensors found on bike carbs and throttle bodies as standard. Keihin TPS
BLACK: Ground YELLOW: Signal BLUE: Live (+5v) This is a wired sensor, therefore making the connections is a very simple process.
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This is one of the most common sensors (pictured left on GSXR1000 Throttle bodies) and is a 3 wire sensor with the following connections:
www.danstengineering.co.uk
09/11/2013
Mikuni TPS
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BLACK: Ground
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These are a non-wired female plug type sensor (pictured left on Mikuni ZX6R carbs). Because there are no wires the installer must re-wire the sensor either by soldering to the pins in the plug and resin filling the cavity or by using an appropriate plug/connector. The sensor shown has been re-wired using the same colour coding as the Keihin sensor, colours from left to right:
YELLOW: Signal
BLUE: Live (+5v)
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AMP TPS
These are a non-wired female plug type sensor (pictured left on CBR600 carbs). This sensor is very similar in appearance to the Mikuni and must be wired in the same way. Again the sensor in the photograph has been wired with the same colour scheme as previous, colours from left to right:
BLACK: Ground YELLOW: Signal BLUE: Live (+5v)
www.danstengineering.co.uk
Bike Carb and Throttle Body TPS Wiring Guide.pdf
09/11/2013. www.danstengineering.co.uk. Mikuni TPS. AMP TPS. These are a non-wired female plug type sensor (pictured. left on Mikuni ZX6R carbs). Because ...
