So I need help from the wiring masters.
I have questions regarding coil and fuel wiring or pin 27 and pin 37 of the AAN ECU into a b3 90q
According to this: http://forums.quattroworld.com/s4s6/msgs/21009.phtml ignition is given by terminal 15 or a switched source of some kind so what I did was hook up the original b3 90q ignition coil wire which black and is at terminal B15 (http://www.s2central.net/S2_Schematics/A/A13.PDF on page 7) to the black wire of the Yellow Fuse Holder (15Amp) – S115 Ignition Coil Terminal 15 fuse found here on page one near the center of the page: http://www.s2forum.com/forum/showthread.php?t=38722.
Now what I am worried about is if power will reached AAN ECU pin 27 or not?
The same question applies to pin 37. Instead according to the Motronic diagram it splits into two different branch(one for fuel injectors and the other for WGV, idle valve, etc. What I did was based on information from: http://www.s2forum.com/forum/showthread.php?t=38722
"Light Brown Fuse Holder (15Amp) – S116 Injector Valve fuse.
1 Blue (2.5) Bridged with S75, goes to S3/87a fusebox.
2 Black/Red (2.5) D95 injector harness.
Black Fuse Holder (12Amp) – S75 fuse for N71, N75 and N80. Stated as 10Amp ???
1 Blue (1.5) Bridged with S116, goes to S3/87a fusebox.
2 Red (1.5) Bridged to N71, N75 and N80."
So I ran a wire that branches off into two separate wires from 87a of the b3 90q fusebox to the blue wire of the "Light Brown fuse holder" and to the blue wire of the of the Black fuse holder. Will this reach or power pin 27? Or so I find a switched source and directly connect it to pin 27? because people were saying that the AAN ECU would not like a direct connection for the fuel injectors and that the switched power should come after the injectors like in the diagram.
I have questions regarding coil and fuel wiring or pin 27 and pin 37 of the AAN ECU into a b3 90q
According to this: http://forums.quattroworld.com/s4s6/msgs/21009.phtml ignition is given by terminal 15 or a switched source of some kind so what I did was hook up the original b3 90q ignition coil wire which black and is at terminal B15 (http://www.s2central.net/S2_Schematics/A/A13.PDF on page 7) to the black wire of the Yellow Fuse Holder (15Amp) – S115 Ignition Coil Terminal 15 fuse found here on page one near the center of the page: http://www.s2forum.com/forum/showthread.php?t=38722.
Now what I am worried about is if power will reached AAN ECU pin 27 or not?
The same question applies to pin 37. Instead according to the Motronic diagram it splits into two different branch(one for fuel injectors and the other for WGV, idle valve, etc. What I did was based on information from: http://www.s2forum.com/forum/showthread.php?t=38722
"Light Brown Fuse Holder (15Amp) – S116 Injector Valve fuse.
1 Blue (2.5) Bridged with S75, goes to S3/87a fusebox.
2 Black/Red (2.5) D95 injector harness.
Black Fuse Holder (12Amp) – S75 fuse for N71, N75 and N80. Stated as 10Amp ???
1 Blue (1.5) Bridged with S116, goes to S3/87a fusebox.
2 Red (1.5) Bridged to N71, N75 and N80."
So I ran a wire that branches off into two separate wires from 87a of the b3 90q fusebox to the blue wire of the "Light Brown fuse holder" and to the blue wire of the of the Black fuse holder. Will this reach or power pin 27? Or so I find a switched source and directly connect it to pin 27? because people were saying that the AAN ECU would not like a direct connection for the fuel injectors and that the switched power should come after the injectors like in the diagram.
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