Power Vision Help
Road Warrior
Joined: Apr 2010
Posts: 1,648
Likes: 37
From: Monroe, Louisiana
If it's only pinging when you jump on the throttle, start by adding a little fuel to the accel enrichment. If that doesn't do it, you'll need to log a run to see exactly where the detonation is occurring, and how much timing is being pulled.
DFW the VE tables, and don't start yanking 6-8 degrees of timing.
DFW the VE tables, and don't start yanking 6-8 degrees of timing.
Attached is the area of timing that he has the ping in his current map and the modified map to fix the ping. I am blaming the quality of the fuel and the heat on this one plus the temp/timing table issue. This is the same map that is on every touring harley I have looked at and most have had the ping issue. It is not difficult to tell where the problem is. The reason the 45 degrees doesn't ping in the 3500 up area is you won't be in that area cruising. At 3000 rpms cruising you will be around 50 to 60 kpa load. Above that rpm in cruise you will be at 70 plus kpa and the timing is lower there. When accelerating and shifting in this rpm area you are in the 80 to 100 load area with much lower timing.
I have looked at the new 2014 maps and they have reduced the timing in that area on the SEPST maps. I haven't seen the stock map that comes on the 2014 bikes yet.
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dlpuette
Ignition/Tuner/ECM/Fuel Injection
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Aug 18, 2015 07:40 AM
