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2006 Chevrolet Impala SS Question: engine light on code P442 and P140



tony2A, 5.3L V8, Houston, TX, March 26, 2013, 15:27

I did replace the gas cap with a new one from auto parts store.

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    Greg's Orange Auto (15216 Answers) , Orange, CA - (714) 361-9386
    globalhelper March 26, 2013, 15:42

    bank 1 sensor 2 has issues with reading exh gases. after market gas cap are not always reliable. po442 could be cap issues or evap leaks in other areas.

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    pushrod, March 26, 2013, 18:06

    Greg is right, also the last fuel cap i got was from a GM dealer for less than aftermarket, with retainer strap!

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