I've been wrestling with timing drops Cobb Stage 1 4.01 Aggressive OTS map. I've even tried the sport map and drive map too and get the drops to a slightly lesser extent. I've even tried all 3 levels of the maps on version 3.01 and get the same result. I don't believe its hardware. I never get codes, have 45K on the odometer, changed the spark plugs at 37K and the HPFP was replaced in 2010 with the revised version.
Timing drops always coincide with actual boost exceeding requested boost. I've pulled a ton out of WGDC base and still have not been able to eliminate it. Things are better. Whereas before I would see lots of negative timing now I see more low positive numbers. Wide open throttle and the above 4K RPM's are actually very good. Its mostly at the onset of boost that these happen. I get the drops on part throttle too. My DME seems to like to pull timing aggressively and only closes throttle on rare occasions. When it closes throttle its already too late.
What's especially frustrating is that when I give a light stab of throttle on the highway in 5th or 6th gear (only requesting around 2 psi) Ialways over boost as you'll see in the attached. My WGDC values in this range are already at 0.05 - 0.5. I'll pull them down to 0 but where do I go from here? Any suggestions using PID?
Interestingly on the stage 0 (mimics stock map) I don't get any timing drops even in low boost part throttle situations. Is there something fundamentally different in the underlying logic in this map?
I'm under a CPO warranty and I really am hesitant to stack with a JB4 for this reason although I know doing that seems to be the current workaround. Any suggestions of what I can do ATR with just the Cobb are much appreciated.
Timing drops always coincide with actual boost exceeding requested boost. I've pulled a ton out of WGDC base and still have not been able to eliminate it. Things are better. Whereas before I would see lots of negative timing now I see more low positive numbers. Wide open throttle and the above 4K RPM's are actually very good. Its mostly at the onset of boost that these happen. I get the drops on part throttle too. My DME seems to like to pull timing aggressively and only closes throttle on rare occasions. When it closes throttle its already too late.
What's especially frustrating is that when I give a light stab of throttle on the highway in 5th or 6th gear (only requesting around 2 psi) Ialways over boost as you'll see in the attached. My WGDC values in this range are already at 0.05 - 0.5. I'll pull them down to 0 but where do I go from here? Any suggestions using PID?
Interestingly on the stage 0 (mimics stock map) I don't get any timing drops even in low boost part throttle situations. Is there something fundamentally different in the underlying logic in this map?
I'm under a CPO warranty and I really am hesitant to stack with a JB4 for this reason although I know doing that seems to be the current workaround. Any suggestions of what I can do ATR with just the Cobb are much appreciated.