You ll need a gm iat sensor and an absolute pressure sensor.
Gm iat sensor pinout.
Iat sensors have no polarity so it does not matter which wire you connect to which pin.
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.
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 with open element is the recommended fast response intake air temp sensor iat for use on forced induction vehicles.
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.
Buy gm open element iat sensor with 6 pigtail by diyautotune.
The iat.
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Simply wire a gm open element iat sensor into your factory wiring harness at the maf connector.
Perhaps the most desirable maf sensor for gen iii ls engine conversions is the five wire version that was introduced with the 2000 gm trucks.
This process is basically the same for any automotive connector.
Having the iat within the maf housing is very convenient.
Genuine delphi gm original equipment manufacturer oem 2 wire metri pack 150 2 connector replacement pigtail for many gm intake air temperature iat sensors.
Commonly used with many 1979 newer gm vehicles.
If the sensor is seeing 4 0 volts the ucontrller should see 4 0 volts as.
This sensor is also used with the 2001 2007 corvette and 2005 2006 gto.
Lance one thing to keep in mind is the ecu microcontroller has a d references that are normally tied to the sensor voltage.
We also really like the efi connection for gm connectors.
Its extra two wires are used for the internal iat sensor.
This sensor connects to the third and fourth pins on the iat connector as shown in the graphic below.
Michigan motorsports iat mat intake air temperature sensor wiring harness connector pigtail for ls1 lt1 engines.
A good source for the gm sensors might be gm parts direct.
For additional wiring and or pinout information please refer to our ecu wiring information page.
This episode is a quick guide for the iat sensor intake air temperature wiring.