SBC HEI
Posted: Sun Apr 30, 2023 6:01 pm
Playing with that HEI module https://rusefi.com/forum/viewtopic.php?p=31888#p31888 on a bench.
Proteus uses GPPWM to tell HEI who is in charge - below say 300 RPM it's HEI doing cranking timing and above 300 it's rusEFI doing timing.
channel 1 tach signal - purple wire with a white trace - pin R
channel 2 coil tach output
channel 3 ignition override - tan wire with a black trace - pin B
channel 4 advance control - white wire - pin E
Here HEI is in charge (channel #3 on the image is low)
Proteus uses GPPWM to tell HEI who is in charge - below say 300 RPM it's HEI doing cranking timing and above 300 it's rusEFI doing timing.
channel 1 tach signal - purple wire with a white trace - pin R
channel 2 coil tach output
channel 3 ignition override - tan wire with a black trace - pin B
channel 4 advance control - white wire - pin E
Here HEI is in charge (channel #3 on the image is low)