Thread: IAT Wiring

I have a SR20DET S13 with NEMU running on a 62 ecu. What pin outs are you guys using for your IAT install?

I know that the NEMU instructions state to use the following pin outs: 21 or 29 for the grounds

What pin out are you using for the EGR Temp Sensor input?

Most of use here are running FWD cars. Our ECU's do not support the EGR temp sensor so we are forced to use the break out box.

I personally use the 5v output on the break paired with a 4.7k ohm resistor to power the IAT

I also use a ADC input slot on the break out box for the signal to the ECU.

For the ground I used the engine ground on the intake manifold.

Pin out 26 is the the input I keep seeing for ECU pin outs however at the ecu connector for that pin it's bot black/yellow as advertised!

So I don't want to be tapping into a pin that isn't the correct pin and ultimately fry something!

The other option is to wire how FWD guys do as I do have a 4.7 ohm resistor but I rather tie it back to the ecu if possible.

EGR temp sensor input is on pin 26 on your ECU. If there is no wire for pin 26 in your harness, move one of the otherwise unused consult wires to pin 26.

There is wire at the pin, the issue I have is that it isn't black and yellow as described in most pin outs.

Is there a way I can test to ensure it's the proper pin?

You should trace the pin 26 wire and see if it goes to the egr temp sensor

Egr temp sensor, where is that in relation to the sr20det?