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> Error Codes Po300 Po301 Po303
Lockedup
post Aug 14 2008, 10:35 AM
Post #1


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Location: Arizona
Drives: 2000 Accent
What can cause this? Ive done plugs, wires, o2 sensors, MAF, and checked the TPS.
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rancal
post Aug 14 2008, 08:12 PM
Post #2


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Location: Vallejo Ca
Drives: 2006 Chevy Tahoe 2006 Hyundai Accent
Check for clog catalytic converter or clog air filter
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273HYPO
post Aug 15 2008, 06:06 AM
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Location: South Jersey the 51st State
Drives: 2004 Accent GLS
Try a bottle of STP gas treatment in your next fill up and then try it again a second time and see if the CEL goes out. It worked for my P0304 code which is basically the same as your P0301 & P0303 except differnet cylinders are misfiring.
The light has come back on twice but when I run a bottle of the STP it clears it within a 100miles. Everything else checked out fine on my Accent.

Good Luck, 273HYPO

This post has been edited by 273HYPO: Aug 15 2008, 06:07 AM
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