My car bucks a little when driving mostly steady state. It correlates to when the log shows a sharp dip in timing. The timing dip does not happen when I'm WOT. The timing dip is not associated to any particular change in throttle and no knock is recorded. My car is a 2009 CTS V with 592whp.
Here is the mod list:
- ID 1000cc Injectors
- 2.4 Pulley
- Cat Delete
- LS7 throttle body
- Track Attach HX
- Varimax Intercooler Pump
- Norcal intercooler tank
- Dual NGK AFX widebands
- Airaid Intake
- Dual SMC catch cans
- Relatively new cooler spark plugs
I realize that most of those mods don't directly affect the directly engine, but I want to share the non-factory stuff just in case.
Timing_Dip.png
Timing Dips.hpl
CTS V Tune - HP Tuner Help.hpt
Thanks in advance for your help.