MembersPage/DavidBlades/FuelTest

VE Table

k[0]=14 1C 24 2C 34 3C 45 4D 55 5D 65 6D
r[0]=05 0A 0F 14 19 1E 23 28 2D 32 3C 44

n[0]=20 27 50 70 93 A1 A6 AA AD B2 B4 B4
n[1]=24 28 4F 74 91 A1 A6 A7 A9 B1 B1 B1
n[2]=28 2C 50 75 91 A0 9F A0 A1 A9 A9 A9
n[3]=2C 30 50 74 8E 99 9A 97 9A A1 A1 A1
n[4]=30 34 50 73 89 93 93 92 91 9A 9A 9A
n[5]=34 38 50 6E 83 89 8A 8C 8F 8F 8F 8F
n[6]=38 3C 50 65 7A 81 83 84 84 84 84 84
n[7]=3C 3F 50 5D 6F 78 78 78 78 78 78 78
n[8]=3C 3C 50 5F 6F 78 78 78 78 78 78 78
n[9]=39 3C 50 5F 6F 78 78 78 78 78 78 78
n[A]=3A 3C 50 5F 6F 78 78 78 78 78 78 78
n[B]=3A 3C 4E 5D 6D 76 78 78 78 78 78 78 


'''Lambda Table'''

k[0]=14 1C 24 2C 34 3C 45 4D 55 5D 65 6D
r[0]=05 0A 0F 14 19 1E 23 28 2D 32 3C 44

l[0]=37 37 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D
l[1]=39 37 32 32 2D 2D 2D 2D 2D 32 32 32
l[2]=39 37 37 37 37 32 32 32 32 32 32 32
l[3]=39 39 37 39 39 39 39 39 37 39 39 37
l[4]=39 39 37 37 37 37 37 37 37 37 37 37
l[5]=39 37 44 44 44 44 44 44 44 44 55 5C
l[6]=37 37 48 48 48 48 48 48 48 55 63 66
l[7]=37 37 55 55 55 55 55 55 55 5C 63 6B
l[8]=37 37 63 63 63 63 63 63 63 66 6B 6B
l[9]=37 43 63 63 63 63 63 63 66 66 6B 6B
l[A]=37 4F 66 66 66 66 66 66 6B 6B 6B 6B
l[B]=6B 6B 6B 6B 6B 6B 6B 6B 6B 6B 6B 6B

Sorry the formatting isn't good. I promise to deal with it ASAP!

Progress so far

Well, the car now runs, and it has taken me to work and back for a good while now. (Short 6 mile trip with a good range of conditions) Initial results are good. The fans come on when they should, the engine warms up at a sensible speed, hot start is excelent, but cold start is not so good!

Coolant and IAT sensors have been calibrated manually. This was a difficult job involving generating an accurate Steinhart-Hart model for each sensor in Excel and recording the temperature reported by the ECU for a selection of known resistances. I could then build correction tables. For some reason EasyTherm always produced the wrong answers (and most often produced non-monatonic curves). More detail on my method can be found in my sensor page.

Over the weeks, autolearn has done a great job with tuning the VE map. It's now very smooth in most areas. It's turned into a rather quick car now - but I still want more!

Bad points are:

Q Is there an easy way to see which cells autolearn has changed in the VE map? (Apart from comparing the current map to an old one...)

  • AFAIK no. Both mcd and the MegaTune get-VE command dumps the learnt VE, not the VE reference. If you read the learnt VE from the ECU, do mvr (revert VE to reference) instead of mvs (save learnt values), you can dump the old values too. But comparison is still needed.

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