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Sensor1 Bank1 (17521) and Evap Major Leak keep appearing at the same time

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Old 08-25-2006, 04:55 PM
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Default Sensor1 Bank1 (17521) and Evap Major Leak keep appearing at the same time
Pure coincidence, or are they related?
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Old 08-25-2006, 05:16 PM
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isn't "Major Leak" = gas cap not on? (although for me it was broken check valve)
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Old 08-25-2006, 05:50 PM
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gas cap = "Small Leak" IIRC
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Old 08-25-2006, 06:42 PM
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Default Aftermarket exhaust? Major leak usually = burnt through evap tube at rear on cars
with an aftermarket exhaust.
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Old 08-25-2006, 07:37 PM
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Default Miltek
How hard is it to replace the tube?

Think this is related to the O2 sensor code?
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Old 08-26-2006, 10:46 AM
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i don't know that answer to either:-(
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