Re: Sputtering until you floor it
No check engine light installed on that model year. Not too sure since it's associated with a sound, may be running too lean and pinging (which isn't good for the engine). Fuel pressure test is the only way to know if the fuel system is functioning correctly, too much or too little fuel pressure is going to cause problems. Think I would start with pulling diagnostic codes from the computer, key on engine off/continuous memory and key on engine running when warm. Think that would help narrow things down.
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