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Forum > Failed Smog Test > Question

1999 Toyota Corolla failed the NO part of smog test

Hello my car failed the emission part of the test. The NO section for it being to high max need to be 477 ave 67 meas 532. It's a Toyota corolla 1999 with about 214000+ mileage on it. My question is how much will it cost me to fix it?
Answer:

How much getting your Toyota Corolla to pass the smog check will cost depends on what needs to be repaired. Typically on high mileage vehicles we'd recommend first conducting a cylinder compression test to ensure compression is within specs. High compression (which older vehicles tend to have) would cause your Toyota's engine to run hot. Combustion chamber temps above 2500 f creates high NO. posted by SmogTips Support

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