2000 Mazda Truck Check engine light

2000 MAZDA TRUCK
120,000 MILES • 6 CYL • 2WD • MANUAL
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JADED65
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The truck seems to be running fine but is up for emission testing and check engine light has been on for 6 months or better. What are the most common reasons for this as I don't want to pay out the fanny when it fails the testing. Thank you. Edward
Mar 28, 2008 at 1:13 PM
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MERLIN2021
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First thing you need to do is have the codes read, Autozone does it free, Post the results with the code number(s). Even if the service engine light is not on, there should be freeze frame data stored.
Mar 28, 2008 at 1:21 PM