Mass Air Conversion on '92 5.8L for my F-250?

[PKRWUD]

How about 1 out of 3.

Wiring mods necessary to install MAF into a SD system.

You will need a MAF ECM with matching injectors.

Homemade MAF power signal harness into SD EEC IV connector (for use with a MAF ECM)

Parts:
MAF connector
4 wires
2 EEC IV connector pins

attach the 4 wires to the MAF connector

the wire in MAF connector pin:
"A" is spliced into the wire at EEC pin 37
"B" is spliced into the wire at EEC pin 40 or 60
"C" has a EEC pin soldered to the other end, and is inserted into location 9 in the EEC connector
"D" has a EEC pin soldered to the other end, and is inserted into location 50 in the EEC connector.

(if your MAF connector has 5 pins {A-E}, connect as above: A is the same, B is left empty, and C-E are the same as B-D above)

Smog Pump wiring at the EEC connector must be changed as follows:
Move the wire in position 51 to position 38
Move the wire in position 11 to position 32
If necessary, splice in extra wire to reach these new locations

I have attached the injector diagram. Leave injectors 1 and 2 the way they are and on the remaining injectors leave the VPWR the way they are also just adding the "trigger" (ground) wires from the processor to the injectors. Pin 12 is injector 3, pin 13 is injector 4, pin 14 is injector 5, pin 15 is injector 6, pin 42 is injector 7 and pin 52 is injector 8. Injector 1 remains pin 58 and injector 2 remains pin 59.

Take care,
~Chris