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The mkiv Supra Owners Club

HKS IAT sensor


teddan
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Yep :)

 

I have found this. ButI have an aftermarket ecu so I need the values. In this table is seems that i need a pull up?

 

Sensor: Temperature: Intake Air Temperature (IAT) and Engine Coolant Temperature (ECT)

Sensors - Intake Air Temperature (IAT) - Comparison An intake air temperature sensor is needed when intake temperature correction is used on vehicles that either do not have an intake temperature sensor or if the stock temp sensor has been removed.

 

If utilising "optional" IAT sensor, software parameter intake temperature input needs to be changed to PULL-UP, from normal.

 

The following is accepted by HKS PowerWriter Software:

• HKS (4603-RA001)

• Honda #1

• Honda #2

• Mazda RE #1

• Mazda RE #2

• Mitsubishi

• Nissan

• Subaru

• Toyota #1 (eg: JZZ30, JZX90, JZA80, JZA70, SW20, ST165, ST185, ST205)

• Toyota #2

 

To use with HKS in custom-made harness (pull-up / 1230 ohm voltage divider) mode [units in mV]:

Temp © -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130

Toyota1 ECT 4550 4399 4086 3719 3258 2865 2383 1982 1506 1279 1050 853 705 540 421 372

HKS IAT 4632 4433 4166 3831 3439 3011 2574 2157 1777 1449 1171 945 762 614 498 405

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You are unlikely to find it, but you could measure it if you were patient and had a decent means a raising and measuring air temp in a small chamber with a fan to move the air about. You would also need a resistance meter (cheap...). If the ecu accepts other sensors it would be far simpler to get a Bosch or Marelli one that comes with a resistance / temperature chart.

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