Battery voltage fluctuates
Posted: Sun Aug 13, 2017 7:10 pm
Hi,
I've got a VL with a s1 rb25 with rb20 ecu (FP). I'm nearly ready to start a tune. My afrs are't holding steady at all on idle and nistune shows battery voltage fluctuating all over the place, 12v to 16v in spikes from 14 causing a miss (I assume from this). I checked my voltage at the battery and it's holding a steady 14.2 on idle and 12.4 engine off. Battery is good, exedy HP 1 yr old. I'm wondering, how does nistune detect the battery voltage? I might have an earth issue in my loom somewhere in that circuit?
exciter and dash light are wired correctly.
I've got a VL with a s1 rb25 with rb20 ecu (FP). I'm nearly ready to start a tune. My afrs are't holding steady at all on idle and nistune shows battery voltage fluctuating all over the place, 12v to 16v in spikes from 14 causing a miss (I assume from this). I checked my voltage at the battery and it's holding a steady 14.2 on idle and 12.4 engine off. Battery is good, exedy HP 1 yr old. I'm wondering, how does nistune detect the battery voltage? I might have an earth issue in my loom somewhere in that circuit?
exciter and dash light are wired correctly.