I miss read your earlier e-mail, I have not changed AF ratios, I have been changing the VE table using logged blms. The OEM tune is AFTY.

What I have endeavored to do is take the parameters from the OEM tune, that appeared to work well in the car, and put them into the $12P. "secondly, why are you enabling knock logging at 40 degrees ? there is no need to change this setting." my ignorance thought it need to to be this low t...

This is the version with max advance of 35 degrees, the usual range is 40/46 degrees.

Might as well add the adx in case I have stuffed up.

Here is the short run, longer to follow.

Now for really strange timing numbers, on throttle application the timing retards which I believe to be a normal initial reaction to load changes but not a -16 degree spike. Have a number of occurrences that coincide with initial throttle application. Am running OSE_$12P_APNX_V6.bin, OSE_$12PV110.xd...

No usually rich, high volts.

Been doing some more logging and tuning in the hope of a better understand my knock retard issue. Modified the main spark table to limit timing advance to 35 degrees instead of the 40/45 that is typical of the various cals that are supposed to suit a vn S1. Was expecting to reduce the instances of k...

Below is one cause for the delay with work on the VN.

Been reading Holden202's "Basics of Tuning a Delco..." and noting his comments regarding common timing values between idle advance spark and the main advance spark tables, was wondering why the idle, cold engine and 20-100kPa A/F ratio tables do not appear to blend at common engine tempera...