Need tunerpro XDF and ADX for 1228747 AKWA

[EagleMark]

Yes plug it in and drive for a test! This will also prove your 8747 is bad. See if it sets a code, probably trans TCC? Only issue in theory is turbo 400 kickdown, which you already have in truck so just need to figure how to wire/switch it.

[1leg]

I just checked the wiring to compare with other 7747 diagram. This computer doesn't have the EAC SOL brown wire on C2, My 8747 doesn't have it ether. I'll go plug it in now and see if it will start.

[EagleMark]

What's an EAC?

Do you mean ESC for knock sensor? Some 7.4L TBI engines did not have knock sensor...

[1leg]

What's an EAC?

Do you mean ESC for knock sensor? Some 7.4L TBI engines did not have knock sensor...

I'll check that out. I know my suburban has a knock sensor.

First test drive, No CEL, TCC activates th400 kickdown. Slight off idle stumble other then that run pretty good, temp still reading high. Should i start a new tread for a 8747 to 7747 swap, I want to make this work before i go down the 427 swap road. i'll have a lot of question.

[1leg]

What's an EAC?

Do you mean ESC for knock sensor? Some 7.4L TBI engines did not have knock sensor...

Here is what i'm seeing for EAC

[EagleMark]

That's for air pump, your truck probably didn't have one, mine does not either.

EAC Valve An abbreviation for Electric air control valve. This is the GM version of a diverter air gulp valve, providing three functions in a single valve
•the normal diverter valve function, i.e., it diverts air on rapid increase in manifold vacuum;
•it relieves pressure by diverting air to the air cleaner when the air injection system pressure exceeds a certain set level;
•being solenoid-controlled, it allows air to be diverted under any desired operating mode

EDIT: Added it to abbreviations which JeepsandGuns is turning into dictionary as well.

http://www.gearhead-efi.com/Fuel-Inj...-Abbreviations

[gregs78cam]

Electronic Air Control Solenoid.
electrically operated valve to switch sir pump feed between AIR ports in exhaust manifolds, and catalytic converter.

http://books.google.com/books?id=3AJ...epage&q&f=true