Mazda 626 missing and backfiring

1962 MAZDA 626
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RDEGROOT
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1993 Mazda 626 6cyl 380000 Km
When engine is cold car runs fine but as it warms up at idle it is good but when accelerating it misses and backfires.
Sep 17, 2007 at 8:08 PM
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RASMATAZ
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[quote:ecbae8966a="rdegroot"]1993 Mazda 626 6cyl 380000 Km
When engine is cold car runs fine but as it warms up at idle it is good but when accelerating it misses and backfires.[/quote:ecbae8966a]

When was the last major tune-up?
Sep 21, 2007 at 9:43 PM