You most likely need to change a parameter in the tune . Here is a snap shot from hptuners. The tach resolution needs to be changed to make your tach work. My high and low resolution are set to 3 for mine to work correctly.
You most likely need to change a parameter in the tune . Here is a snap shot from hptuners. The tach resolution needs to be changed to make your tach work. My high and low resolution are set to 3 for mine to work correctly.
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