[macgyver]

Don the connector should be under or behind the dash near the steering column. That is where it is on most Newells. It may just be a loose 12 pin rectangular connector rather than being attached to anything. I know there were mechanical 8V92's installed even a year after yours. Does yours have the yellow Check Engine Light and the Red Stop Engine Light on the dash? The DDEC I had separate EDU and ECM units. DDEC II combines the EDU and ECM into one box.

For anyone interested, there is a copy of the DDEC I troubleshoot guide https://www.wanderlodgeownersgroup.com/d...0Guide.pdf

Thanks Michael It has the two lights on the dash , they actually work as it shut me down when the rad was a little low ! I will have another look for the connector , at least I changed a couple dash lights last time peeking in there !