I own a 1998 Mariah 242z with the 7.4 fuel injection. I recently had an issue and asking for advice. While cursing down the lake at 3000 rpm my motor just went to 0rpm no noise or any warnings. Now I noticed as well that the warning buzzer when you first turn the key to the on position doesn't work as well. I believe theses are connected to the issues. I depressed the shredder valve to see if the fuel line had pressure and there was none. I also have a mechanical fuel pump and I assume an electrical one but I can not locate the electric pump. All advice is much appreciated pals love to get here up and going soon. Thanks so much.