[skippermccoy]

Mine would only run on spray when I first got it. I did all the grounds, relays and wiring checks. It turned out to be a big vacuum leak at the side of the throttle body where there is a plastic plug that over time gets very brittle. To check for a vacuum issue put a long piece of fuel hose down the flapper to keep it open. If it runs then start to look for big vacuum leaks.