my Alfa Milano Verde
my Alfa Milano gold
my Alfa spider
Too long for the 4cly
Looks like I can make it work for the V6
if there is a power-NPN inside I think we will need to add a small NPN (2N3904), eg. on the IGBT pads:
- the small NPN's Base goes to where the gate was (1k away from ign259's output pin)
- Emitter need to go to a resistor (say 10..33 Ohm) then the COP pin 3 (driving the power-NPN's base)
- and the Collector goes to power (+14V, same that powers the coil)
Let me note that stepper driver could drive the NPN almost directly, through a resistor (and very fast!) if we allowed any digitalout()-pin for ignition in edis.c (not just the ign259 outputs).
1J0973724 might be the plug for the VW coil as vw etka lists them
I have been working on a easy way to retrofit older cars with no tiggers.
The proposed GenBoard/InputTrigger? setups below are optimized for fast startup (little time spent in cranking).
"They are not simpler than the supported (ncyl/2*N - m) missing tooth crankwheel setup (like a vanilla 24-1, 36-1 or 60-2),"
How is making a "Vanilla 24-1, 36-1 or 60-2" + some cam pickup(we need to know when to fire the coils and which cyl to inject to)
simpler the breaking off 2 tabs and adding a hall.
but with appropriate firmware support they can find out the engine position faster at cranking.
Anyway, I like the documentation format. We need to explain the direct ign setups on DummyIgnition page (or rather subpages) in a similar way:
- drawing - the 3D is especially nice (rotation direction is important in some cases!!)
- config settings (if supported)
This is not the simplest for a 4 cyl.
It is not?? OK what is simpler that will do seq. injection and drive the 4 coils?
The pickups are 180° apart.
If the 2 pickups were ANDed it would look like a it had 4 tabs not 2
so with this we can see 8 edges one every 45° of the encoder or 90° crank
We can add more tabs if we want. 4 tabs would give 22.5° on the encoder and 45° on the crank.
With this we get:
- Sync after one gap.
- If a pickup dies we could still run.
- Very simple to make and install in a old distributor or on a CAM
- If the 90° is ok most Hall distributors could be retrofited by removing 2 tabs and adding a 2nd hall
This is a old example of a simple trigger for 6 cyl.
The pickups are 60° apart.
Pickup A is even. and pickup B is odd.
With this I can get sync after the first Gap.
So I will not have the crank and crank untill #1 comes around to get sync.
also if one fails I should be able to still get sync after no more the 2 gaps (1 gap past the working pickup) and use softwate timing for the missing pickup.
This can go ether on a cam or inside a distributor.
http://www.clewett.com/products/connector.htm $4.50 + $2.50 for 5 pins ($3.85each for 8)
good pics here
827551-3(black type C) very common pin 927846-1
826008-1(grey typa A) 826008-5 (black)
825414-1(grey type b)
the -x is the color
injectors to buy
curve Q -3.86%/C@25C 3435Beta set at 2K seems to match the Bosch CLT