Thread: TunerCode Feature Suggestions and Feedback

awsome...im officaly sold.

What about "injector voltage latency"?

Will it be a single adjustable constant like a stock rom or will it be a table vs Voltage similar to aem?

In the stock ROM, there are 2 values that determine injector latency:

1) Latency at 14.0V (msecs)
This is the rated latency at 14.0V.
2) Battery Voltage Factor (msec/volt from 14V)
The battery voltage is subtracted from 14V and the difference (+/-) is multiplied by this factor. The signed result is added to the 14V latency. This value represents the slope of the latency vs. voltage for the injector, which is pretty linear over the 11-15V operating range.

This is a good question and I've been thinking about converting to the AEM table method, where the battery voltage is used to index into a table of latency values.

Thoughts? Preferences?

Thanks,
Dave

Would it be possible to offset the speedometer to account for the wheel/tire changes?

Say my speedometer/ECU would see 60mph when I'm really going 65mph, because of bigger tires.

I think this sums up my opinion on the matter.




If you have nothing else to do, go for it. It would be far down on my list of things to do though. Injector latency versus voltage is pretty linear.

You could calibrate the internal ECU speed calculation, however this has no effect on the speedometer. The speed sensor signal goes straight to the speedometer and the ECU has no control over it.

Dave

It is much easier to tune latency the way it is. Using a table requires moving every point in the table, even to make a small change.

Dave

I think the way it is currently setup should be just fine. I can add a drop down menu for all of the popular injectors, which can automatically fill in the correct latency and voltage offsets.

Maybe allow users to create new injectors and define then themselves? That way they can switch between injectors that might not be part of the list easily .

Of course, I was planning on making it just like the vq tables.. which are user definable!