I have SW gauges and am using an EZ wiring harness(similiar to painless)I am getting no reading on my temp gauge at all.I did find a 1/4 to 3/8 adaptor so I could use the supplied SW sender.My
oil pressure reading is excessive and this may be due to the wrong sender unit.Also I have a MSD ignition module so I ran the tacometer wire to the tach out outlet on the box but no signal. This is all driving me nuts;any help appreciated. chuck