- Mon Sep 27, 2021 3:59 am
#53265
Thanks, I am going to run the sensors on 5v.
Attached to this post (edit: see updated version in later post) are the wiring diagram with Speeduino pin numbers, green dots for Pin Determined, red dots for Pin needs to be determined. Also attached is a text file of the pin layout so far.
Any help would be great! Questions:
A. Is 10amp (key on wht/yel wire) sufficient to power the whole board? I don't have a planned use for the 30amp hot at all times (red/wht wire) that went to the old stock ECU.
B. Which pin should be used to draw to ground in order to engage ASD switch and therefore fuel pump switch (dk blu/yel wire)?
C. For IAC (stepper motor on the board) stepper motor, does in matter A1 pin30 and A2 pin31 vs. A1 pin31 and A2 pin30?
D. Any suggested pin for power steering switch (dk blu/org wire)?
E. The biggest unknown right now is my alternator. The ECU used to regulate the exciter wire but I think that was mainly to compensate for engine strain. Which pin should be used for input from engaged ASD switch( dk grn/org wire) which I think is power from the alternator? I can't tell if I have a delco SI internally regulated alternator or not.
Thanks to 2carpros.com for the original wiring diagram
Attached to this post (edit: see updated version in later post) are the wiring diagram with Speeduino pin numbers, green dots for Pin Determined, red dots for Pin needs to be determined. Also attached is a text file of the pin layout so far.
Any help would be great! Questions:
A. Is 10amp (key on wht/yel wire) sufficient to power the whole board? I don't have a planned use for the 30amp hot at all times (red/wht wire) that went to the old stock ECU.
B. Which pin should be used to draw to ground in order to engage ASD switch and therefore fuel pump switch (dk blu/yel wire)?
C. For IAC (stepper motor on the board) stepper motor, does in matter A1 pin30 and A2 pin31 vs. A1 pin31 and A2 pin30?
D. Any suggested pin for power steering switch (dk blu/org wire)?
E. The biggest unknown right now is my alternator. The ECU used to regulate the exciter wire but I think that was mainly to compensate for engine strain. Which pin should be used for input from engaged ASD switch( dk grn/org wire) which I think is power from the alternator? I can't tell if I have a delco SI internally regulated alternator or not.
Thanks to 2carpros.com for the original wiring diagram
Last edited by RowdyDouglas on Fri Oct 01, 2021 3:32 am, edited 1 time in total.