runs lean with lights on

[D_808]

I have a gsr with 1000cc id injectors and having a problem at idle its af10.0 rich but when i turn my headlights on it runs real lean at --- af can anyone help me with this problem every time i try to adjust fuel nothing changes thanks.

[Spunkster]

You need to adjust your injector dead times. This will correct it leaning out when battery voltage goes down.

[D_808]

Thanks spunkster will do that