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Use the fuel and matches to burn the car down.

If it seems like it makes no sense, that's because it doesn't. Guy chose a random variable in the scanner, conjured up a hypothesis about how it worked and then etched that misinformation nonsense...

Same overall goal, different product vision. Our approach is less labor intensive and far simpler. Currently there are only a handful of selectable options the user needs to configure to be ready to...

And in just two weeks, I will be headed to Missouri to fill Dave's hole in the supplemental PI market. Gonna fill it good. Excited for vehicle testing.



Time to break some eggs. And by eggs I...

I've never seen the throttle follower cause that...but who knows what sort of failure modes you could find yourself in if the cals are too far off...

https://forum.hptuners.com/showthread.php?108006-Some-info-on-the-torque-based-throttle-follower

In Gen4 applications, the throttle follower is quite literally that - airflow that 'follows the throttle'. When you're on the pedal, you have control of the throttle (most of the time). When you're...

I can explain the algorithm....about to walk into a Jeselnik comedy show though. So, later. :D

That's the question of the century, isn't it?

Seems like you meant to send the one you forgot and then sent another equation entirely?

Open loop mults cannot be helped by any fuel trim feedback. The simple reason is that, where fuel trims...

That doesn't tell me anything. What goes in, what comes out?

How would you even measure that lol

If you have user defined parameters, you can hunt down the fixed rail pressure calibration. And injector cal would be handled just like blindsquirrel said.

Not surprising that it didn't affect VE....because its completely independent lol. Open loop (cold) enrichment is mostly governed by two effects...one being the impaired ability of the fuel to...

If you're really looking for longevity, I'm wouldn't toon anything. Maybe add a bigger trans cooler.

Hey, that's what I do. I've had my hands on controllers that existed in the double-digit order range at full fidelity. That's nasty stuff :)

Gen4 is a bit of a bastard when you look at the...

Dynamic airflow, yes. Ideally, dynamic air represents covers both the measured airflow and where throttle transients cause the throttle airflow and measured airflow to diverge. If you scale the...

There is a painfully explicit method of calculating almost all of this. Gen4+...it all begins with the torque models. If you can manage to get them close, everything else becomes much easier.


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Open loop enrichment is what you want.

Minimum final airflow doesn't affect the throttle unless the engine is riding on that table. Gen4+ base throttle position command is determined by a back-calculated airflow requested by the torque...

There's nothing to really measure for the VE temp correction. The concept is that when air temperature changes, so does the speed of sound. And VE is dependent on the phase angle of the pressure...

I mean...if you need to. There's a world of OL calibrations to be dialed in before engine reaches operating temperature... But none of them should inform the airflow models. That part should be done...

Yes. Open loop enrichment.

That goes back as far as Gen 3.

Cold engine fuel feedback isn't valuable info to calibrate the steady state airflow models. Engine must be warm.

No direct relationship.