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Will bad gas give a false po420 code on a 2003 Toyota Camry 2.4

The reason I ask is that everything was fine until I fill up at this station an drove about 20 miles. And then the check engine light came on.

Vehicle: 2003 Toyota Camry 2.4
asked Dec 30, 2012 by anonymous

1 Answer

Most likely the catalystic converter is bad, if you alway fill up low octance gas that is a consequence over time, not just one time. Erase the code when you are at quarter thank and fill at least 91 octance and drive and see if the code goes away
answered Jan 1, 2013 by G37driver (3,516 points)

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