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Old 08-09-2010, 05:57 PM   #1 (permalink)
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CEL comes on at hwy speed?

Ok I get code 43 FUEL SUPPLY SYSTEM
got any ideas?
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Old 08-10-2010, 08:18 AM   #2 (permalink)
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First thing I'd check... quick and easy... is the gas cap. Make sure it's not cracked and is screwed on correctly. I know it sounds stupid to check the gas cap but it locks in gas vapors and if it's loose or broken can cause the ECU to throw a fuel system code.
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Old 08-10-2010, 09:55 AM   #3 (permalink)
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ok, looking at the Helms manual is sounds like a O2 sensor.
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