310 sundancer, 350gm, throttle hesitation, dies in gear

Don Cohoon

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Jul 1, 2011
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Help. 1998 310 Sea ray, Twin 350gms, 300hp, inboards, fuel injected. Throttle starboard engine hesitates or dies in nuetral. If I throttle up slowly, i can bring rpms up, but it sometimes backfires. Putting it in gear works, but as soon as i touch the throttle it will sputter, backfire, and or just die. Fuel filters,changed, fuel pump, changed, new plugs, cap, rotor. Switched with port motor, air sensor, temp sensor, and a few other sensors that i didnt know what they were. Also switched all fuel injectors with port motor. Nothing changes. Any thoughts or ideas would be much appreciated. Thanks. Don
 
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