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Old 01-23-2006, 06:02 PM
bonnie97 bonnie97 is offline
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Question Code 305

I have a 97 pontiac bonneville, the check engine light is on and its throwing a code 305, what does this mean?
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Old 01-23-2006, 06:37 PM
maxwedge maxwedge is offline
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Re: Code 305

Misfire in # 5 cylinder, p0305.
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Old 01-24-2006, 06:04 PM
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JimmySLS JimmySLS is offline
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Re: Code 305

What is the mileage?Has it had a tune up?If not i would say a fouled plug or a faulty plug wire...
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2001 Bonneville SLE "Bella Donna"..... K&N Filter, Ceramics pads on front and rear,XM radio.. 130k on the clock...All the bells and whistles...check my car out at [url]www.cardomain.com/ride/2058777... R.I.P Bella Donna..wrecked on 05-08-07...
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Old 01-28-2006, 01:19 PM
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richtazz richtazz is offline
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Re: Code 305

I agree with Jimmy. Try plugs and wires (as these are regular maintenance items), and if that doesn't help, the injector is probably bad on cylinder #5.
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