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Air Temperature Sensor

Where is it?

Located at number 4 cylinder inlet manifold near the block

What is it?

The ATS sensor measures the air temperature immediately prior to mixture at the fuel injector spray nozzle. It is a negative temperature coefficient thermistor (electrical resistance drops with temperature increase)

What's it for?

By measuring the air temperature the ECU can correct the air fuel ratio to allow for the effect of varying air density. As the density of air is higher at lower temperatures the ECU will adjust the fueling ie. the injector opening time to compensate.

Connector Details

Input Manifold Air Temperature Sensor (ATS)

PIN Colour Function Signal Destination
ATS Sensor Ground Bus 0V ECU(Black) Pin 13
Air Temperature Output to ECU DC ECU(Black) Pin 14

Schema and Signals

air_temperature_sensor.txt · Last modified: 2011/12/07 12:42 by admin