• Second spark table in a 1227727 ECM

From Bruce Plecan

• Tuning tips
• Plug cuts
• Programming 101
  • Programming 101 email archive #1
  • Programming 101 email archive #2
  • Programming 101 email archive #3

• 1227747 used for spark only. Companion bin file
• 1227747 Idle/IAC functionality
• 1227747 PID control loop for fueling. (Original version)
• 1227747 Lag filters used in GM ECMs.
• GM TCC strategy

• ASDZ (1227747 $42) hack
• ANHT (1227727 $8d) hack (HTML version)
• BUA (1227165 $32) hack
• How to hack
• Truck RPO codes

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