failed echeck

MAZDA 626
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HOTMAMA0604
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  • 1 POST
i have a 95 mazda 626 appx160000 miles. i failed echeck due to a nox level to high. my husband put seafoam in the gas tank twice and the readings got better but just not good enough, if anyone has any answers please help me. also all of my other readings are perfect. the nox level is about 1604. and it should be in the 1200.help
Apr 4, 2006 at 2:54 PM
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LOSONE
  • ✓ASE Certified Mechanic
  • 1,616 POSTS
  • ASE Certified Mechanic
You have a tired engine. Take it to a good mechanic and see what the O2 reading are with a scanner. It sounds like your engine is running rich. Seafoam is a very bad idea as it will ruin the injector screens. Good Luck
Apr 4, 2006 at 3:15 PM
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