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  1. beedubleyew

    98 5.7 rough idle and stalls

    hoping I can get some help. obd tool says OL fault, no stft or ltft. getting PO300 misfire codes, o2 sensor b1s1 and b1s2 shows no activity. I've changed everything emission related including o2's. new fuel pump. pressure at 55. new distributor. cam retard at -30. can't get it to change with...
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