Megasquirt ECU
I am working to change my FM Link ECU to a fully standalone Megasquirt ECU, and to make the installation as plug and play as possible.
First build the board and then mod it as per the instructions at DIY Autotune. You will end up with something that looks like this:
The pin out connection is:
DB37
1 Ground 4C & 4D
2 Ground 4C & 4D
3 Ground 4C & 4D
4 Ground 4C & 4D
5 Ground 4C & 4D
6 Ground 4C & 4D
7 Ground 4C & 4D
8 Ground 4C & 4D
9 Ground 4C & 4D
10 Ground 4C & 4D
11 Ground 4C & 4D
12 Ground 4C & 4D
13 Ground 4C & 4D
14 Ground 4C & 4D
15 Ground 4C & 4D
16 Ground 4C & 4D
17 Ground 4C & 4D
18 Ground 4C & 4D
19 Ground 4C & 4D
20 Air Temp to GM sensor on 3P (was idle up for power steering)
21 Water Temp 3G
22 TPS Signal 3F
23 O2 3C
24 Main INPUT (CKP) 4F
25 5 Volt 3I
26 Sec trigger (CMP) 4G
27 Coil 3 & 2 4R
28 12 Volt 4I
29 COIL 1 &4 4N
30 Fast Idle 4Q
31 Tach out 4L ??
32 Injectors 4 & 2 4X & 4V
33 Injectors 4 & 2 4X & 4V
34 Injectors 1 & 3 4W & 4U
35 Injectors 1 & 3 4W & 4U
36
37 Fuel Pump 1U
You can see that I have used the oem ECU wiring harness connector to give me a plug and play connection to the stock ECU system.
