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Ask Chris (aka-Moose) Your Own Question
Chris (aka-Moose)
Chris (aka-Moose), Auto Technician
Category: Toyota
Satisfied Customers: 868
Experience:  16 years of experience
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It won't pass the NOX portion of emissions test in Colorado.

Customer Question

It won't pass the NOX portion of emissions test in Colorado.
JA: What year is your Colorado?
Customer: 1999 Toyota Corolla
JA: Are you fixing your Corolla yourself? What have you tried so far?
Customer: I have replaced the catalytic converter yesterday, I had the fuel injection system cleaned yesterday. I had spark plugs and spark plug wire replaced and tune up done today. The emissions station told me today after I went for a follow-up test that I should drive about 100 miles of highway driving to burn what is left in my engine.
JA: Has the vehicle turned into a gas hog? And how does it start -- same as usual?
Customer: No, the exhaust does not throw out black smoke, the car starts without a problem, but I do have to add about a 1.5 quarts of oil every other week. I normally drive 50-60 miles a day.
JA: What is the make/model of your car?
Customer: 1999 Toyota Corolla Ve
JA: Anything else you want the mechanic to know before I connect you?
Customer: No
Submitted: 4 months ago.
Category: Toyota
Expert:  Toyota Service replied 4 months ago.

Hello. Welcome to Just Answer. Please allow me to assist you. Before we begin, please allow me to ask exactly what brand of spark plugs you installed. Thanks