I saw a post about others having issues with the emission light coming on. We had our fuel injectors replace this summer (1,800) and now the light is back on and they want to replace the catalytic converter (1,500). None of it is under warranty because we have 81,000 miles. We have already had the air conditioning compressor replaced, push button start was bad. Is this normal? What can we do? We are on a road trip now and the light came back on!