Cheers
Rob
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Moderator: LT401Vette
I'm assuming this must be what's happening to me then, heat soak on the IAT sensor. I've tried tuning with VEAL with MAT Correction all left at 0's, but as soon as my temps are then different, VEAL then starts to adjust my VE table and I just end up going around in circles!LT401Vette wrote:How would you see that working?
You would need to assume all other corrections and your VE table are correct, then capture data at various IAT's.
There would likely be a good deal of room for error.
And typically it seems when the default Gair correction doesn't work properly, I find that the deviation is not consistent. It is related to other conditions such as heat soak on the IAT sensor.
That is really for one of the firmware guys to answer really, but my understanding is that it is all 0's. This curve is to apply additional corrextion to the built in one base on the ideal gas law.HidRo wrote:Phill, isn't the out of the box MAT correction values all 0's??
I've just opened the MSQ that comes with 3.2.1 firmware, and it's all set to 0's.
Should we just leave it at that?
Thanks
Gonçalo
Thanks very much, that clears that up then. Could I add a filter for GAIR in VEAL and VE Analyse? So filter it so anything below 100% and over 100% would be ignored and it wouldn't modify the VE table at that time? Maybe that way on a longer drive where temps were changing a lot, I could then try and minimise the effect and just tune it where temps are similar and GAIR is at 100%.pit_celica wrote:In MS, the temperature of reference for the MAT correction function is 70°F. At this temp, Gair will be at 100%. If at any other air intake temp Gair is still at 100% (because you are using a non-linear MAT correction curve by example), this means that the air density factor is disabled from the fuel equation.
Sam