Question about 1995 Toyota Camry

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Emissions test failure due to high co

I have replaced the Oxygen sensor, Air filter is clean, spark plugs have 25000 miles and I just changed the oil.

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  • krolklan13 Jan 29, 2009

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Wal-mart sells a bottle of stuff that guarantees you'll pass smog. But for me id run a can of injector cleaner through the fuel and clean out the intake. Also id try going to the auto part store and getting a plug that one hotter they will know exactly what you mean. It will help burn more fuel but don't keep them in for too long as they run a little hot. One last thing is hit the catalytic converter with a rubber mallet and start the car. Repeat this until you stop getting black ash out of the exhaust pipe. This will be a sure way to get your Camry to pass smog.

Posted on Jan 27, 2009

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Change spark plugs,wires,cap and rotor if they are over 24,000 miles
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Make the smog check appointment for the EARLY MORNING. Colder air will help the fuel burn better.

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Clean or change the air filter and pcv valve.

Clean Mass Air Flow sensor with CRC Mass Air flow cleaner or electronic part cleaner.

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Do a quick wipe down on the wires and cap to take the moisture off.

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Check spark plug wire contacts for corrosion.

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Fill the tank to around 3/4.......just in case your fuel pump is weak.

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Do not carry excessive cargo on the truck bed.


These are the little things I would do to get the HC and CO down.


Please post more information on the comment window.

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