IAT Sensor Wire Question

[MarshMarlowe]

Which wire is the signal wire ? 2019 F70

[boscoe99]

For what? Temperature or pressure?

[fairdeal]

Took me hours to realize "IAT" stood for Intake Air Temperature

so I'll say black/yellow for air temp - ECM pin #38
P/G for pressure - ECM pin 17

[MarshMarlowe]

Thanks guys !

[boscoe99]

The term IAT also through me off for a bit before I figure out what he was talking about. Lead me down the rabbit hole for a while.

[MarshMarlowe]

Sorry if that was the incorrect term. We're trying to connect a tuner ,and the instructions state to tap into the IAT signal wire. This is for a race boat

[walleye1]

Be careful with the dyno boost, they are junk and a ripoff.

[boscoe99]

Sorry if that was the incorrect term. We're trying to connect a tuner ,and the instructions state to tap into the IAT signal wire. This is for a race boat

I see now why you used that term. Please let us know what the results are when you have tuned your motor. Inquiring minds want to know.

[99yam40]

Be careful with the dyno boost, they are junk and a ripoff.

Inquiring minds would like to know more about this Dyno boost also.
Not that I would ever think I needed something that sounded like that, just want to know what it consists of

[walleye1]

I installed one on a f150 and made no difference in performance.

[99yam40]

a quick google of it , seems some say all it does is fools the ECU into thinking the air temp in is cooler so it will dump more fuel in

[walleye1]

That is it........

[boscoe99]

Too much fuel for X amount of air will reduce power.

The Yams that I measured ran very rich. I could see leaning the motor to obtain more power. But then there is a risk of some bad juju happening.

[walleye1]

Have the ecu/ecm reflashed is about all you will get. Call power tech they can help.

[99yam40]

How come you never hear about people using nitrus on outboards