MAFT PRO WIRING

From 3SI Wiki

MAF Translator Pro WIRING. 91-93 ECU PINOUTS are listed, 94-99 mnay be different

The main page for MAFT-Pro istallation is here: MAF_Translator_Pro_Installation

This Wiring is for SPEED DENSITY INSTALLATION ONLY!

CAUTION UNDER CONSTRUCTION! MANY CHANGES NEEDED BEFORE THIS IS USUABLE!
I am going to show the Wiring for deluxe installation with every option
Speed Density
Timing Control
Boost Controller
Wideband monitor

The MAFT Pro can also be used as a AFC or as a MAF translator but since most people will use it in speed density mode (removing restrictive MAF sensor) that is the only way I will show the installation

This is how I wired my 92 Stealth TT

First I wired the GM IAT sensor to the MAF harness under the hood.
Pin 5 Black is the 5V power going to IAT
Pin 6 Red with Blue Strip is the IAT signal the ECU sees

The MAF sensor Wiring for a 91-93

1 Green With Yellow Stripe: 5V power for Baro Sensor (Pin 61 on 91-93 ECU)
2 Orange: Baro Singal to ECU (Pin 65 on 91-93 ECU)
3 Blue with Yellow Stripe: Airflow Signal to ECU(Pin 70 on 91-93 ECU)
4 Red: Power for Airflow sensor, (To Control Relay)
5 Black: Ground for IAT, Airflow and BARO signal (Pin 72 on 91-93 ECU)
6 Red with Blue Stripe: IAT signal going to ECU (Pin 52 on 91-93 ECU)
7 Red With White Stripe: Air Flow sensor Reset Signal (Pin 19 on 91-93 ECU)
8 Not used :

Next I made the wiring connections under the dash

10 Pin connector

pin 1 (orange wire) Wideband input
pin 2 (purple wire) Widband signal ground
pin 3 (Blue) Tapped into TPS (ECU circuit 64)
pin 4 (Green) MAF Signal output (ECU side of circuit 70) (Cut stock wire)
pin 5 (Pink) Tapped into ECU power( ECU circuit 25)
pin 6 (Brown) Vout 1, AIT (ECU side of circuite 52) (Cut stock wire)
pin 7 (Grey) Vout 2, Baro out, (ECU side of Circuit 65) (Cut stock wire)
pin 8 (White) CAS sensor (Sensor side of Circuit 69) (Cut stock wire)
pin 9 (Yellow) MAF Signal input, connected to MAF side (Cut stock wire)
pin 10(Black) Tapped ECU Ground (ECU circuit 26)

6 Pin connector
pin 1 (Red) 3 BAR MAP sensor Power
pin 2 (Green) 3 BAR MAP sensor signal
pin 3 (Brown) AIT sensor (Circuit 52 sensor side)
pin 4 (Black) 3 BAR MAP sensor Ground
pin 5 (Black) -not used -
pin 6 (Purple) Datalogging trigger?

8 Pin connector
pin 1
pin 2
pin 3 (gray) CAS output,(ECU side side of Circuit 69)(cut stock wire)
pin 4
pin 5
pin 6
pin 7 (Pink) 12 V to boost controller
pin 8 (Purple) Boost controller signal