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Old 10-24-2016, 09:01 PM   #1 (permalink)
Gixxerman
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Join Date: Jan 2016
Location: Delaware
Posts: 24
Drives: 2009 370Z Grey
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Default Clogged Catalytic Converter / P0300 Code

After months of dealing with a P0300 code, my car went into Limp or Safe Mode while on my way home. It wouldn't go over 40mph and 2500 RPM's. I drove it to the dealer, they conducted an initial test, then a compression test. I was told it was a clogged Catalytic Converter causing a P0300 code. When the first Check Engine Soon light was received, I changed the entire coil pack, all spark plugs, cleaned the MAF sensors and checked for vacuum leaks without no success. Has anyone ever heard of clogged Catalytic Converters causing a P0300 code
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