924Board.org

I'm just gonna have lunch now, but I plugged my scope already to input and output of the ignition module. I'll let you know later what I figure out, but this module is already on my list of suspects : ...

I've done ignition system based on distributor to EDIS conversion with MegaSquirt before. This is really stable setup - strong spark, easy to diagnose, and you can advance/retard your spark whenever y ...

The DITC:

So when my engine started, either cold or warm it was misfiring, well it still is.
I had this feeling there is something wrong with DITC already, but today it was 100% hit. Or maybe it's ...

So I spent c.a. 10 hours in garage today

Replaced 5 elbows and some lines to brand new silicon ones.

But... First things first - CIS.

I've removed AFM to see if it works as intended:
...

https://i.imgur.com/vlg6fRx.png

Well I admire you for tuning CIS with Megasquirt

Any kind of spike like that should not happen. It goes lean, while normally it should go rich after closin ...

No, I don't have the VEAL, VE Analyze Live, "autotune" features of the paid versions of the megasquirt software yet.. It's like $130 for the full paid software upgrade..

I know I should ...

I always tend to check one thing after another. That way you can easily spot if something has influence on the rest of the system. Whatever "the system" is

Methodological, takes time, bu ...

1. Valve closed, fuel pump running - c.a. 5.5 bar
2. Valve open, cold, fuel pump running - c.a. 2.0 bar at 20 deg Celcius outside
3. Valve open, warm, fuel pump running - c.a. 3.7 bar
4. From co ...

Other things that just came back to my mind, not related to CIS

- When short circuited fuel pump for first time after 20-30 second fuel line between fuel pump and fuel pressure accumulator went in ...

Don't have a photo of that, but the bi-metal spring was mounted up-side down.

This is my second attempt. After first one and few minutes operating the engine was flooded and died.

RPM jumps ...

Old rule says, if the engine won't start, either lacks fuel or spark.

I'm sure there is plenty of fuel in my engine, so I'm beginning to track spark.
At that stage I knew there is kind of ECU cont ...

This is my second attempt. After first one and few minutes operating the engine was flooded and died.

I removed spark plugs and revved the engine with starter motor to empty cylinders from excess ...

Ok, so I have the settings for my cold and warm pressure, system pressure and control pressure.

I've set up these according to the WUR number as in this data sheet:
http://old.classicporsche.pl/gr ...

If you don't have all of that maybe your head is from a car that did or something..

Well for sure there is something messed around with that engine. Just to mention I have the early shaped pist ...

So I got a replacement fuel distributor from my friend, and I was so happy all should go fine now. Spraying patterns like in catalogue, even amount of fuel in all four injectors...

http://old.class ...