BIG 'G'

Need some help trying to figure out why i'm losing 14 to 16 deg of spark when tipping in. Running a chevy1500 4.3 w/ 5spd, as you can imagine trying to take off while losing 14 deg of spark is creating some serious bogs. Ive been thoough dimented's hac and can not figure out why i should be losing more than 2-3 deg through the derivitive routine. Can't figure out where so much spark is being pulled from , according to my SA table spark should be advancing. no knock counts . appreciate any help thanks.

Fast355

iTrader: (2)

Look at the ABUSE mode Retard, IIRC its set at around 9.84*. Very likely its your culprit. Also I am assuming you looked at the base spark map as there are two of them. Idle and Off-idle and they are RARELY the same. As soon as you tip-in the throttle from idle and a stand still, you transfer from the idle spark map to the off-idle spark map.

BIG 'G'

Thanks for the tip Fast, however it does appear to be the difference between the to spark tables. When i copied and saved to the idle spark table it didnt get saved. Found my screw up while retracing my changes to the spark tables this morning.