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Old Mar 15, 2011 | 02:14 PM
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Pete Nyce's Avatar
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Default 0300 code
i have a 0300 code showing up on my 2004 monte carlo, which is random cylinder misfire...any experience similar problem and how was it resolved
 
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Old Mar 15, 2011 | 02:27 PM
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Are you having any stuttering or sputtering at all?

Last time the plugs / wires were changed?

Another other issues at all?
 
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Old Mar 15, 2011 | 02:39 PM
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it loses power at times...
 
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Old Mar 15, 2011 | 02:45 PM
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There are soooo many problems that could cause this code.

Catalytic Converter
Vacuum leak causing you to run lean
bad wires
bad plugs
bad o2 sensor
 
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Old Mar 15, 2011 | 02:57 PM
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thanks
 
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Old Mar 15, 2011 | 03:03 PM
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if it is the catalytic converter does it need to be changed?
 
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Old Mar 15, 2011 | 03:09 PM
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Yes, but you can easily get it backpressure tested.
 
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