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Another no start this morning. Ether kind of got a pop out of it but mostly no...so its flooded from yesterday.

The spark tester shows spark on #7....but it seems pretty weak. I didn't get a chance to try another cylinder. I'll pull the plugs and let it dry out while the battery charges.....I need more batteries perhaps.....

I loaded a new version of ELC last night and they added a new feature to the log graphs I was asking for and love now that it there. You zoom to whatever period you want the graph to show and then old data scrolls off the left. The old way was all the data always showed in live mode so after a couple minutes you couldn't really read the graph without exiting live mode. This is nice....now I need the engine running.

You have that welder that probably makes a great high current 12V power supply

I think it's 24V....not sure

I think I had the coils configured wrong in the ECU. I changed the setting and the spark indicator showed a good strong spark....don't know how it ran with the other setting.

But it still had no interest in running today. It ran GREAT on ether, sounded fantastic, nice and smooth.but no interest at all in running on its own....and as I was typing I took a quick look at the logs...its out of gas, less than 10psi fuel pressure. DOH!!!!!!!!!

edit - I also re-calibrated the WB02 sensors. They were both pretty black looking so we'll see if that changes anything.

Be brilliant at the basics.
Got C16 for it?

No C16, just plain old 93

Basics are hard. Yesterday after I messed with the coil settings I checked the timing quickly and it was close enough.....this morning I realized I hadn't locked it so I was actually off about 14 degrees. I fixed that first thing.


Today I thought I'd pull the fuel back and start with ether....but it didn't really work out well. I think I'm spraying too much fuel cranking and the ether just made it more rich...it fired every time but all the fuel fouled the plugs quickly. I'll need a new plan for this evening, like turning off the fuel during cranking and switching to gas once it starts, assuming I get time this evening.

Something's not right with my cylinder MAP code, cylinders are updating outside their angle windows......I'll need to look at that. In the meantime I re-sync the TB to a measure position so they should be closer to right than they were. Also when I went to add fuel little one told me it was leaking...he was right, there was a vent hose on the filler neck missing which I fixed...maybe less gas smell in the garage now.

I think that's fixed now....we'll see next test session.

I feel like I made progress today.

First I confirmed the ECU output signal were doing what I thought they were....and they were. Check.

Next I pulled the coil packs and checked all the wiring. It was correct. Check

Reassembled everything and confirmed the spark....solid when I choose normal, weak and irratic and sort of randomly fluttering on invert. Now invert is what the user manual says because to get a signal high during charge and low to fire you need to select invert. I found on-line that the coils I have charge when the signal is high and fire when it goes low...so invert the way I had it set from the beginning....which just goes to show that a lot of what you find on-line is crap. The correct setting is normal, not inverted.

But on this setting turning on the key had a habit of blowing ignition fuses....but I now for sure the wiring is right because I just charged it. hmmmm....could it be that the power relay is turning on before the trigger signal goes high so the coils are all trying to charge at once? Yes it could and moving the coil power relay signal to the bottom of the model seems to have fixed that.

I decided to try to get cranking effects out of the equation so I set the VE at 250 and 500 rpm to 0% so no fuel is delivered until the engine is above 500 and it come up to full full by 700. Ether in, engine alive just like that....that it died. I upped the coolant correction and tried again and it stayed running but seemed rough....I think it was too rich? Mot sure but the couple plugs I pulled looked decent.

It was now too late to continue making noise but I feel like this is a decent step forward. I'll look over the logs and see where I want to start tomorrow....but I can keep it running so next is confirm the timing at running rpm.....if I have the coil setting right it will match the cranking timing within a degree or 2, if I'm wrong it will be stupid retarded....but that is a question for tomorrow.

oh, and I just opened the log...it looks like the cylinder MAP stuff is working now. Once I check the timing I may kill 1 cylinder and block the TB to make sure the signals are reading correctly but it looks right at first glance. Double progress.

Today's mission will be to first add a little more delay to the coil power delay.....I think I heard a cylinder of 2 try to fired at key on so I'm thinking power was still at the coils before the ECU got the control signals on but not for long enough to bother the fusses. I'm going to add actually delay, not just model position delay.

The other thing is the noise on the MAP signal. This is the noise I'm using to give me the cylinder MAP readings so its not actually noise, but I'd like the fuel delivered to not be bouncing around 10% like the MAP signal. Just averaging all the cylinder reading creates a lot of lag.....responce to throttle movement is delay 6 or 8 engine cyles at 1500rpm I was running at so that is no good plus I need read in the signal as is for the cylinder MAP stuff to work so I can't just turn-on the built in filtering on the input channel. I'll rename the incoming signal so the raw data is available to the cylinder MAP code then add some filtering before I call it MAP that is used in the fuel calculations.....I may make the filtering RPM dependant so I can smooth quite a bit down low without a lot of lag up top...or maybe better yet make it dependant on the MAP reading, low MAP lots of smoothing, high MAP very little, something like that would remove lag anyhitng time you mash the throttle