Maybe I misunderstood on phone.
Is this an audi with 24+1 "nissan-like" trigger ?
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ignchmax=03
next_trigger_tooth=06
And reference teeth:
h[1]=00 12 0C 06 ...
Ignition outputs
4 ignition level outputs needed to fire external ignition amplifiers
See GenBoard/Manual/IgnitionOutput Choose 0,1,4,5 channels which allows the widest set of ECUs (0, 2 or 4 IGBTs) to be used
- when testing something with borrowed ECU
- nr of. EC18 analog inputs have been extended over time. Always check carefully not to apply 12V (or anything outside 0-5V) to any analog input!
- or ordering ECU with different IGBT-number than intended
- or ordering ECU to be used with more than one car
Firing order is 1,3,4,2 Recommended order (list actually travelled upwards):
- cyl1: ignch0 EC36/..
- cyl2: ignch5 EC36/..
- cyl4: ignch1 EC36/..
- cyl3: ignch4 EC36/..
h[2]=00 50 10 40 ...
With this ignition output setup, you can
- use assembled box with 0 IGBT, 2 IGBT or 4 IGBT
- with a missing tooth wheel you are able to limphome without camsync (disable camsync, shorten dwell and enable igndualout).
- Only to avoid towing. This is not good for running high-power (COPs would fry at the worst time when you are as far from home as ever ! Yes, COPs somehow always find the most inconvenient time if you abuse them)
- if the engine family is always equipped with a "coil-type trigger" (no missing tooth, so limphome without camsync not possible anyway) you can choose h[2]=00 50 40 10... for readability. This order is easier to verify and rotate without a paper reference
In any case, keep written notes about subsystems in a thin paperbook in the glovebox.
BAD order, do NOT ever think about h[2]=10 20 40 30 !!!
- cannot use ECU with 4 IGBTs
- cannot use ECU with 2 IGBTs
- can only use ECU with 0 IGBTs
- limphome without camsync not possible with any primary trigger wheel
- wiring instructions are not simpler in any way, as the EC36/xx pins will not be 1-2-3-4 or any "order" anyway
- if you choose a set of outputs (this is a very bad set), than you make the ignition output order look good (NOT cylN to ignchN !!!).
- you only make the wiring once, following written plans, looking at the EC36/xx column (not the ignch column)
- on the other hand you might verify ignition output configuration dozens of times
- even rotate it when trying to start. Or when upgrading from 1.0.x to 1.1.x if the reference tooth starts with 0 (as recommended).
Making a standard is good. But making something standard that is a bad idea for any setup is not good.
Trigger
24+1 VR ?
primary ?
VR ?
secondary ?
VR as well ?
If you have 1 camsync pulse, but 2 camsync sensors, say 360 crankdegrees off (as on many nissans), you only need one. Try to mark it.
- with a supposed camsync problem, using the other camsync sensor is an option: just need to rotate ignition output order cyclically.