So, a little more information and update. Went out to the boat today but it was late and getting dark so I couldnt get decent pictures. I am pretty sure there is something wrong or missing. I found the purple and white wire coming out of the DENSO module mounted to the exhaust elbow. but it goes...
So I'm going to preface this with.... I'm not a mechanic, but have accomplished some pretty cool automotive builds. I landed my very first boat, a 2006 SeaRay 205 Sport, for 2500 bucks with a blown motor. It was originally the 5.0 mercruiser. I had a 5.7 vortec Chevy sitting in the garage that...