my car failed emissions testing cat not ready evap not ready and os2 not ready.

What is your question?

i have changed all 4 oxygen sensors and replaced the flex pipe. i am still getting obd2 codes po 430 and po153 without the engine light on. what next should i try?

chrisroy02 in Arverne NY

Oct 9, 2014

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What are the best Nissan repair shops?

RepairPal Certified shops can diagnose and repair your 2002 Nissan Sentra. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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What is your question?

Popular Answer

my car failed emissions testing cat not ready evap not ready and os2 not ready.

What is your question?

i have changed all 4 oxygen sensors and replaced the flex pipe. i am still getting obd2 codes po 430 and po153 without the engine light on. what next should i try?

chrisroy02 in Arverne NY

Oct 9, 2014

1 Reply

Popular Answer

Death Clausenon Oct 9, 2014

How long has it been since you had a complete tune-up done?

chrisroy02on Oct 10, 2014

i year and a half i change the spark plugs only and not the coils

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Popular Answer

What are the best Nissan repair shops?

RepairPal Certified shops can diagnose and repair your 2002 Nissan Sentra. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.