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You may wish to use a less-than-maximum dwell for lower RPMs, which would yield a less-than-maximum spark intensity. Running at max dwell all of the time creates heat in the coil(s), which would shorten their life span. Reserve max dwell for WOT conditions. That's my guess anyways. That makes sense...

What the hell, 2018 tire did what?! Was that caused by the accident? Probably. I the car from the NE? In the hot sunny states dryrot is very common, some places tires over 5 years don't pass inspection i read so if from a place like that maybe just age. Here in PA I just learned most real tire plac...

1) Its ony 1/2 sync with only a crank trigger so you need batch fuel I think and that should give fuel every revolution. batch.JPG 2) MAP sync is in the cam signal settings map sync.JPG then just guessing be sure and set this to a rpm that you will have a good MAP signal...MAP goes away at WOT advan...

AndreyB wrote: ↑

Wed Oct 30, 2024 8:25 pm

On the photo spark plug 2 is on the left, spart plug 3 is on the right. Moving spark plugs around did not affect misfire in 3.

I'm honestly surprised that plug works in any cylinder, maybe best to just replace it.

Thank you Sir!

The VE and ignition blend table allows RPM as the blend parameter but have a max value limit of 1000 on the axis, so too low for most RPM based uses. There was talk of bigger VE table on discord and the thought was the blend table could be used to effectively add additional rpm points....but the axi...

Does your ECU support both passive and active coils? No, it a 0-5 25mA output that is now a 3.5-5V output. The 2-stroke setup works and starts the engine but the ecu loses its mind after about 10 minutes and timing goes funny I found a place that says they can probably repair it and I might try but...

it looks like this feature came to be real but the load axis on the table is missing its label

....there are only two kinds of low side outputs - ones with and without flyback......all inputs are pulled up and down in the schematics, That is normally a column on the pinout so everything the user needs to successfully wire it is on 1 page. you have complete freedom which TS reflects, but pino...

I relooked thought several ECU setups, the haltech seems pretty standard. Link has 4D or 5D table which seems at the extreme end. Coolant_Temp_Bias.png The Coolant Temp Bias table generates the Calculated Air Temp value. The Calculated Air Temp should closely approximate the actual air temperature e...

The pressure and density don’t matter, ONLY the mass flow rate. Less air movement, picks up more heat from the walls. More air movement, picks up less heat. I think what you're concerned with is temperature change so you can calculate mass flow. You measure pressure, you have velocity through VE an...

I get the feeling you think charge temp estimation is for something that it's not. Maybe. I think I understand it but who knows. In my mind, if its tps/map v rpm it washes out in the VE table. I've done about a dozen installs now and tuned about as many again and I've never used this feature. I've ...

The problem though, I think, is that it’s not energy transfer that is the concern, its temperature change. Obviously, the temperature is a measure of the thermal energy but the air is not cooling the manifold and port in any meaningful way so the density of the charge is mostly irrelevant and the te...

Talking generally about charge temp….its really hard to tune because on any given day it looks the same as VE effect wise. A buggered charge temp estimate gets mostly corrected while tuning the VE table. It will show up with the mixture looking different as ambient temp changes which kind of shifts ...

the effect you’re describing is EXACTLY what the charge temperature estimation is for. No OEM uses an after start fuel correction table longer than maybe 30 seconds. no doubt post start is meant for post start and disappears quickly normally but charge temp estimation (as implemented) is not time o...

Float for engine cycle counter? That's weird, just changed it https://github.com/rusefi/rusefi/commit/53bf3da0e4fa937f9eb0caa1e01490779cd93063 you are now limited at 64000 i guess the relatively low number in the limit is related to the intention of this feature used for relatively short term enric...

Idle cranking and idle warmup, regardless of etb or else Thanks, I got that answer last night on discord and was going to paste it over here. Sadly the discord guys convinced me there is no hope I could make this work, not that is doesn't work because I'm sure it does, but I have no confidence I ha...

Am I missing where the ETB warmup and cranking settings are located?

I made the decision to just go into the .ini and change the max value to 10000. Its an F32 type so hopefully the ECU FW doesn't mind and the 1000 was a random choice that seemed big enough but isn't, at least not for my engine.

What are the Aux Linear 1-4 selections? I can't find a reference to them anywhere other than as a TS selection as a table axis

This looks like its a typo in the pinout and TS naming for lowside1. 16C is what I see in TS, and it is pin D16 so its correct, but its the only pin in the pinout I see with mismatched pin names.

What is the purpose of requiring a fixed dwell during cranking? It it to do what making the code stable or something like that? My coils (GM D585) auto fire if they over charge. Cranking voltage is low, 10V but as so as the engine fires at all voltage jumps to over 12 mean dwell wants to go from 6.3...

Can someone explain why the base dwell table is dwell V rpm table and the dwell v volt is a correction instead of the main and only table? I just can't figure-out what dwell and rpm have to do with each other and how that table is ever anything but the running voltage dwell? It seems like a useless ...

What does rusEFI do if a value is outside the table axis range? If say rpm is 100 and the min axis value in the table is 300 does it use the 300rpm value as a constant for anything below 300? I was assuming it holds constant but thought it best to ask Also without dynamic table sizing I'm finding mo...

I'm not finding an explanation of the MAP setup parameters on the wiki or in the forum, but maybe I missed it? what is mapExpAverageAlpha and value range is rational? What is the sampling angle referenced from? TDC? the graph opens at 0-180 in TS so from TDC on the start of the intake stroke (360 fr...

For a long I saw no reason for a baro sensor as the only people loving them were MS user and they had a specific issue where the the code was set up for baro and if you didn't have one would read the MAP at key on and store the value as baro and that makes a mess of the mixture if you dirve up or d...

Even I see or say something helpful every now and then

Everything important looks good, just a bit awkward to setup. I'll probably order some hw to try soon.

I'm looking through the warmup options and finding options that look like they will work. This is kind of a follow-on from my post on charge temperature because manifold temp, that kind of controls low rpm charge temp significantly lags CLT on every engine I've ever worked on and that is true on the...

Looping back I was looking for a way to disable it because I'm pretty sure none of the options are correct. For any given engine, charge velocity is a function of RPM and independent of TPS. TPS and RPM together determine the density (and therefore mass flow) of the moving air but the velocity and p...

Is this an error in the baro correction function of just the table axis name? The axis is ignition load, but its asking for baro values so I assume it should be labeled baro....then the question is does the function work correctly or is it actually looking at ignition load rather than baro? Baro err...