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2005 CADILLAC STS
84,500 MILES
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VELATRANS
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the check engine light is on. Just came on yesterday, We changed the gas cap but its still on. The code reading at Auto Zone said EVAP leak, gas cap or hose lose. We dont have a lot of money and are suppose to go out of town tomorrow. Any assistance would be great.What should we do?
Apr 25, 2013 at 1:33 PM
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WRENCHTECH
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What was the exact code number?
Apr 25, 2013 at 2:43 PM
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VELATRANS
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P0422
Apr 25, 2013 at 3:18 PM
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WRENCHTECH
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That's not an EVAP leak. It's not even an EVAP code.

Main Catalytic Converter -Efficiency Below Threshold (Bank 1)

It means you need a new Catalytic Converter.
Apr 25, 2013 at 3:47 PM
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VELATRANS
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Maybe is p442
Apr 25, 2013 at 4:52 PM
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WRENCHTECH
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Yes, that is for a small EVAP leak. The way you find that is with a machine that fills the system with smoke and the smoke will escape through the leak. You'll have to call around to local shops to see which one has a smoke machine..
Apr 25, 2013 at 4:57 PM