We have a big update coming with lots of new features for the multiguage. This update will work with both early and modern version. It modernizes the unit a lot and adds a ton of features.
my initial thought, because its the simplest and possibly the most common variable to rule out, where is the alternator from (e.g. factory rebuilt, new OEM, Denso grouping or maybe ebay/Chinese knock off?
I have received 'not so good"...
I have a brand new 17111-17015 intake manifold I picked up for a '90 1HD-T that I would like to trade for a 17111-17010 intake manifold (a few less bungs)