Dirtleg
Full Access Member
No my problem was only with the lights on and the dimmer turned up from completely off, or if the vent fan was on full blast regardless of the lights. Strange circumstances to me but the problem went away when the grounds were isolated. And with the lights on I could vary the amount of inaccuracy in the EGT readings with the dimmer all the way to constantly reading Zero on the gauge. Why the vent fan speed affected it is confusing to me but it did. A common ground with the instrument/dash lights and the climate controls would be my guess.
I was just trying to offer another perspective.
I was just trying to offer another perspective.