730 ECM 749 ECM
A8------------->A9 (ALDL data) not necessary
C1------------->B12 (VSS for cruise)
C11------------>C12 (Injectors 1,3,5,7)
C12------------>C11 (Injectors 2,4,6,8)
D6-------------->C13 (Injector ground)
E3-------------->E4 (IAC coil A high)
E4-------------->E3 (IAC coil A low)
E5-------------->E6 (IAC coil B high)
E6-------------->E5 (IAC coil B low)
F1-------------->F4 (shift light) for manual trans
F2-------------->disconnect (AIR pump solenoid)
F6-------------->F4 (TCC) for automatic trans


Question about F1-------->F4 ???

Not clearly what to do with F4 ???!!!!
It should be disconnected ?
Or it on a place F1 or F6 connect?
Write who knows, please

possible variants:

F1 <------> F4
or
F1 --------> F4 and F4 ----disconnect
or
F1 --------> F4

???? HELP ME PLEASE

 

Well it depends on which trans you have. It looks like you have a 4l60 according to your signature. If so you shouldn't have a wire on pin F1. So just connect your exixting F6(730) ecm to pin F4 on your 749 ecm. The F4 in the 749 ecm will either control a shift light or a TCC solenoid depending on trans & chip.

 

Thank for the fast answer
But you have understood me not so - I know that I should use F6
( F1- is not used)
Question in what to do with F4????
To leave it there where it was or to disconnect ?

F6 to F4 = F6+F4
or
F6 to F4 = (F6 in F4) and F4 disconnect
or
F6 swap F4 = (F6 in F4) and (F4 in F6)

 

From the AUJP hac- 7730 on left, 749 on right.b You'll have to ask what the abreviation was used for the Air divert on a 749.
I thought the 58 FAQ sticky said what to do with it.

 

The friends!
You again have not understood me!
I should learn, after repining what will be with F4?

F4 There will be in the place where it and was?
Or
F4 It is necessary to disconnect from the plug?
Or
F4 It is necessary to connect to a socket F6?

Well I can not understand in any way, forgive the fool, please

 

Your existing F4 on your 730 ecm does not get connected. It's job is for air managment. The 749 does not support this as far as I know. Some board members are working on that right now. Unless you have to get emmissions tested, don't worry about it.

 

I have understood so - what F4 - DISCONNECT - correctly?

Hence I should choose the circuit "C"



variant "A"

F6 F4
I I
I I
I I
I I
O O
F6-socket F4-socket


Variant "B"

F6 F4
I I
I---------------I I
I I
I I
O I--------------O
F6-socket F4-socket


Variant "C"

F6 F4
I I
I---------------I X (disconnect)
I
I
O I-------------O
F6-socket F4-socket


Variant "D"

F6 F4
I I
I---------------I I
--- I --------------I
I-----------I I
O I--------------O
F6-socket F4-socket

 

oyyaa - forgive - all has deteriorated
I so long drew that it was clear

- F4 disconnect!

 

I have wire on a socket F4 - Black/Pink wire color (Diverter solenoid)

 

OK, Last time. Remove the wire in cavity F4 and leave it not connected. Take the wire from cavity F6 and put it in cavity F4.

 

THANK HUGE
At YOU the LARGE PATIENCE
THANK
NOW I HAVE UNDERSTOOD
EXCUSE THAT I HAVE ANGERED - DID NOT WANT
ONCE AGAIN THANK

 

I don't think anyone is angry, just a communication breakdown. I'm happy you understand. Just remember none of the air management and canister purge items are used with the 749.

 

And what for cleaning of the canister is necessary?
The correct work of the engine without it is possible?

 

E8 or E9 is the canister I think.
Look around for a SYTY pin out. Try DIY_EFI or SYTY.org ????
Might ask what those two pins are if no one chimes in.



No Canister.... what were you thinking.

 

Wow, thats cool! You built this in Moscow, most of us in the USA can't even get this done. Nice job. Honestly I would be more worried about finding something to hold on to. This car is going to be very fast. You can rework the canister to open on vacuum, you will need to use a purge valve from a carbureted GM car and make the proper vacuum hose connections. I can look into what is needed at work & get back to you.

 

I think CAC is for the intercooler pump. Not sure.

 

I am very glad that you liked mine corvette
Thank
We have collected it in Russia from the American components
But much made by hands - it was very difficult
We have spent 2.5 months - made with the friend together
Complexity in that in corvette c4 is not enough of a place for the large turbines
I shall be glad if you to me help with the canister ventilation

E8 - Quad Driver (Fan)
E9 - Quad Driver (PWM)

 

YES.

E8 - CAC Pump contr. relay
(i looked to scheme)

 

I just checked on Mitchell On Demand5. E8 is CAC pump control. E9 is EVRV control. The canister purge system on an Sy/Ty is basic. One feed from fuel tank, one vent to atmosphere, and one ported vacuum source. There is a vacuum check valve on the ported supply side. It looks like the Sy/Ty purges whenever there is a ported vacuum supply.

EVRV=egr valve control
CAC=intercooler pump

 

Thank 87tpi7749, for this important for me the information.
I shall understand as to alter