I have a 2002 toyota Camry Le 2.4. The car shop says that my exhaust system is sealed no leaks yet I get exhaust fumes smell in through the vents when idling. When on recirculating air I smell nothing. I'm wondering what this could be since I had my exhaust manifold gaskets replaced flex pipe catalytic converter when it failed. My car does burn a qt every 600-800 miles. I replaced the plugs a year and a half ago with auto light iridium and made sure they where tightened properly. PCv valve and system is working properly. What could this be?
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