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Old 03-26-2008, 06:05 PM
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Codes

I scanned my 95 7.3 with my edge evo and these codes came up. What do they mean. po603 and po476?
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Old 03-26-2008, 06:14 PM
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The P0603 is thrown from you tuner. The p0406 is probobly your tube needs cleaning Welcome to guzzle's Exhaust Backpressure Sensor Cleaning Maintenance Web Page
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Old 03-27-2008, 04:36 AM
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So i shouldn't worry about the po603 code and clear it then?
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Old 03-27-2008, 05:03 AM
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Yeah now if you had that code and didn' have a tuner or chip then you might have an issue
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Old 03-27-2008, 05:03 AM
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No worries, just clear them and run.
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