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Astro 1985-2005
Chevy's first entry into the minivan class, offered in All Wheel Drive to add to its versatility.
Platform: M-Body

code PO 430

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Old Apr 24, 2016 | 2:25 PM
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rparsonsca
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Default code PO 430
my 1996 astro van has a bad miss in engine and shows a obd 11 code PO 430anyone know what that code means would appreciate any help
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Old Apr 24, 2016 | 4:52 PM
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cleveland63b
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catalyst efficiency below threshold....fix the miss before you chase it, the only way that code would relate to a misfire is if the cat is clogged but a misfire will cause cat issues
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Old Apr 26, 2016 | 1:48 PM
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rparsonsca
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thankyou clevland 63b , I will fix the missfire first and then check for codes
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