2004 Chevrolet Astro Check Engine Light Won T Over 50 Miles Gets Slow On Hill

2004 CHEVROLET ASTRO
170,000 MILES
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check engine light ,won't go over 50 miles and it gets slow on the hill
i replaced new fuel filter changed all the sparkless replaced oxigene sinser stil the same problem
plz help
Oct 18, 2012 at 5:03 AM
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SATURNTECH9
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First thing is what are the exact code numbers you have not code descriptions?Also i would do a back pressure test.
Oct 18, 2012 at 5:19 AM
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FIXITMR
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have you checked codes in computer?
Oct 18, 2012 at 5:19 AM
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