1G to 2G MAF Upgrade chart

[freshlane]

I went around on the internet and just put together this little chart on the MAF conversion. Please feel free to reply with edits. (ps the "=>" indicates what it will connect to on the other harness.)

1G TURBO MAF

1 - Idle position switch
2 - Air flow sensor (signal)
3 - MPI control relay
4 - 5V power supply
5 - None
6 - Ground
7 - Barometric pressure sensor
8 - Intake air temperature

1G N/T MAF

1 - Air flow sensor (signal)
2 - MPI control relay
3 – 5V power supply
4 – Ground
5 – Barometric pressure
6 - Intake air temperature

2G TURBO MAF

1 – 5V Power supply
2 – Barometric pressure
3 – Air flow sensor
4 – MPI control relay
5 – Ground
6 – Intake air temperature
7 – Volume Air Flow


CONVERSION: <1g nt MAF -to- 1g turbo MAF>

Pin2 1g Turbo MAF => Pin1 1g NT MAF
Pin3 1g Turbo MAF => Pin2 1g NT MAF
Pin4 1g Turbo MAF => Pin3 1g NT MAF
Pin6 1g Turbo MAF => Pin4 1g NT MAF
Pin7 1g Turbo MAF => Pin5 1g NT MAF
Pin8 1g Turbo MAF => Pin6 1g NT MAF

CONVERSION: <1g turbo MAF -to- 2g turbo MAF>

Pin1 1g Turbo MAF => ?
Pin2 1g Turbo MAF => Pin3 2g Turbo MAF
Pin3 1g Turbo MAF => Pin4 2g Turbo MAF
Pin4 1g Turbo MAF => Pin1 2g Turbo MAF
Pin5 1g Turbo MAF => - (doesn’t seem like it will be used)
Pin6 1g Turbo MAF => Pin5 2g Turbo MAF
Pin7 1g Turbo MAF => Pin2 2g Turbo MAF
Pin8 1g Turbo MAF => Pin6 2g Turbo MAF