86 Nova

Any tips on reducing emission ratings on this car,its at 1.86,state says they need it to be 1.2,not very much differance,maybe oxygen sensor?? Thanks

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i know this wii sound stupid, but change the oil. that may help

they
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they
What reading is that No, NoX, CO?
With out knowing which reading is way to high, no one can even give a ball park guess as to the problem. Charles
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sorry for the omission in past post,but the co level is what is slightly above the required state level...thanks
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You need to have the EGR circuit checked. I don't remember if in 1986 the corolla/nova chassis had a vacuum, vacuum & electric, or pure electric driven EGR. Charles This is just a ball park guess.
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Why mess with the EGR for a CO failure?
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