- Sat Jan 21, 2023 5:46 pm
#60722
I have been trying to work out why i have random cutouts requiring a reboot of the Speeduino . If moving a flick of the ignition allows it to bump start.
Anyway think the fuelling is good so thought perhaps its a fault with the relay driving the fuse box I am using so thought i would try a different supply.
The strange thing i found was i could start the car without 12v being supplied to the ECU, so where was this supply coming from it appears its the 12v to the IAC9V . Its a 3 pin bosch type so 12v to pin two pf the IACV , pin 1 and 3 to the speeduino pins allowing it to earth each as it needs, at least thats how i have it wired up.
I took the fuse out supplying the IACV and it shuts off, have i wired it up wrong or do i need some diodes on my earths.
1982 TR7 2.0L EFI Conversion.
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