1998 Cadillac Concours P0300 Slightly Rough Idle Long Term Fuel Trim High Bank

1998 CADILLAC DEVILLE CONCOURS
61,000 MILES
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P0300 slightly rough idle long term fuel trim high bank 2. Any help would be appreciated
Dec 17, 2012 at 4:10 PM
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HMAC300
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check fuel pressure first shold be 48-55 psi.
Dec 17, 2012 at 4:13 PM
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