ve tuned now kr

[mr.prick]

i had a tune that was done on a dyno that needed tweaking.
(my ve table was untouced)
i had very little occasional kr. after getting my ve inline and
maf adjusted i`m getting a little bit more kr , but it is not consistant.
what would make kr in places it wasn`t before?
there is only 2 spots where kr is predictably present and it`s not always the same amount.
should i take it back to a dyno or just paste and subract?
what is the best way to tune the spark tables?

[dc_justin]

i had a tune that was done on a dyno that needed tweaking.
(my ve table was untouced)
i had very little occasional kr. after getting my ve inline and
maf adjusted i`m getting a little bit more kr , but it is not consistant.
what would make kr in places it wasn`t before?
there is only 2 spots where kr is predictably present and it`s not always the same amount.
should i take it back to a dyno or just paste and subract?
what is the best way to tune the spark tables?

If the airmass was greatly changed in those spots, the PCM will reference a different spark value in your high octane table than before. Example, if at 2000rpm/85kPa, you previously had a VE value of 85%, this may correspond to an air mass of .66g/cyl, so the PCM looks up the spark for 2000/0.66. After tuning, that same VE table value might now be 78%. This in turn might correspond to 0.61g/cyl, which in most cases will be a larger timing value. The same physical amount of air is entering the engine, but now the amount of timing (and fuel) has been adjusted.

Make sense?

[joecar]

What Justin said... you now get different airmass values which puts you in different places on the spark table than previously.

I assume you have a map of KR vs DYNCYLAIR_DMA vs RPM, then do this...
Copy with Labels from this map in the scantool, and Paste and Subtract with Labels in the spark table in the tunetool.

Also, where the kr occurs, check that your air:fuel ratio is not lean.