S40 pro turbo mac valve

This section is dedicated to discussion of DTA engine control units such as the DTA E48 EXP, P8 Pro, DTA S40, S60, S80, and S100, as well as all things ECU related.
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Turbosammy
Posts: 2
Joined: Mon Oct 18, 2021 11:01 am
ECU Model: S40 Pro

S40 pro turbo mac valve

Post by Turbosammy »

Hi all need some help with turbo mac control valve using pin 18 and aux 2 but I am lock out it says that's for fan can't turn it of I must be missing is there a simple answer?
Gadgetman
Posts: 34
Joined: Sat Sep 03, 2011 9:29 am
ECU Model: S80 Pro

Re: S40 pro turbo mac valve

Post by Gadgetman »

My understanding is:

You can't use output Aux2 if are already using it for the fan relay.

To turn off the fan control option and free up AUX2, you need to open the Sequential Injection and Fan Control tab, and un-tick the "Fan control On?" box.

On the Analogue and aux2 page, youd then need to configure the various settings, and tick "AUX2 Active".
Rob Stevens
Posts: 1247
Joined: Thu Jul 28, 2011 4:10 am
ECU Model: S100 Pro
Distributor: None-Coil On Plug :)

Re: S40 pro turbo mac valve

Post by Rob Stevens »

If you need the fan control you will have to give up one of the following
Aux 4 - Fuel Pump
Aux 5 - Shift Light
Aux 6 - Tacho
Tacho is probably best as you can just wire it to the low side of a coil and it should work if you can get the pulses per rev to match
Turbosammy
Posts: 2
Joined: Mon Oct 18, 2021 11:01 am
ECU Model: S40 Pro

Re: S40 pro turbo mac valve

Post by Turbosammy »

Ok got it sorted the old computer was the problem new one makes all the difference thanks for your help 👍
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