Aug 11 this is a write up on how to wire in a gm iat intake air temp sensor in a 2g and logging it using dsmlink v3.
Gm iat sensor pinout.
Ideally these are at 0 and 5 volts but are by design ratiometric so if there is a load on the sensor output and it drags the voltage down the references will be pulled down by the same amount.
Its extra two wires are used for the internal iat sensor.
A good source for the gm sensors might be gm parts direct.
If the sensor is seeing 4 0 volts the ucontrller should see 4 0 volts as.
This process is basically the same for any automotive connector.
Having the iat within the maf housing is very convenient.
We also really like the efi connection for gm connectors.
Commonly used with many 1979 newer gm vehicles.
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This sensor connects to the third and fourth pins on the iat connector as shown in the graphic below.
Gm iat sensor with open element is the recommended fast response intake air temp sensor iat for use on forced induction vehicles.
The following two sections list the supported sensors.
Simply wire a gm open element iat sensor into your factory wiring harness at the maf connector.
Genuine delphi gm original equipment manufacturer oem 2 wire metri pack 150 2 connector replacement pigtail for many gm intake air temperature iat sensors.
Ocpty intake air temperature sensor fit for cadillac chevy buick gmc oldsmobile pontiac 25036751 25037225 25037034 iat sensor.
Michigan motorsports iat mat intake air temperature sensor wiring harness connector pigtail for ls1 lt1 engines.
The iat.
Lance one thing to keep in mind is the ecu microcontroller has a d references that are normally tied to the sensor voltage.
Buy gm open element iat sensor with 6 pigtail by diyautotune.
Iat sensors have no polarity so it does not matter which wire you connect to which pin.
Assembled with 12 inch lengths of automotive txl wire.
You ll need a gm iat sensor and an absolute pressure sensor.
This sensor is also used with the 2001 2007 corvette and 2005 2006 gto.
Gm iat sensor with open element are proper gm style sensors for use with all megasquirt ms3pro ecus and include a 6 wire pig tail with weatherproof connector.