Hi all,

Have a NB8A running MSPNP Pro. For some odd reason the battery light will randomly come on and off when driving causing the car to stutter for a split second. Only happens when off the gas/initially pressing gas pedal.

Alternator just replaced, battery holding charge and belt has been tightened. Thinking it may be ECU related but unsure, any ideas on how I can start to diagnose this?

 

Check your ground.

 

A lot of a few events might help, just to look at voltages.

 

Does anyone have picture references to all grounding locations by any chance?

 

Needs logs.

 

Oops, that's what I meant by "lots".

 

Makes sense now

I have a RS-232 adapter coming soon in the mail, all the ones I buy from stores here in Australia don't seem to work lol. Will post logs when I can..

 

Go back over all the alt connections.
we had the nut back off after a few hundred miles and had to replace the alt again...not a lot of fun with a coldside stupidcharger.