2005 Mazda 3 Repair Question
Topics covered: Engine, Alternator, Mechanic.
Mileage: No information provided.
Mileage: No information provided.
Asked on April 23, 2010
2005 Mazda 3 Engine Light
Engine Mechanical problem
2005 Mazda 3 4 cyl Two Wheel Drive Automatic 110000 miles
My engine light came on after having my alternator replaced. I was told that might be the cause but it failed inspection because of the light and the code that can up was PO421 Low catalytic threshold. What does this mean and what do I have to do to fix it in the most inexpensive way? Mazda wants $95.00 just tp run a diagnostic even though I can give them the code.
2005 Mazda 3 4 cyl Two Wheel Drive Automatic 110000 miles
My engine light came on after having my alternator replaced. I was told that might be the cause but it failed inspection because of the light and the code that can up was PO421 Low catalytic threshold. What does this mean and what do I have to do to fix it in the most inexpensive way? Mazda wants $95.00 just tp run a diagnostic even though I can give them the code.
Asked by Lucy Verhave