2000 Other Acura Models chk engine light on

2000 ACURA

11,800 MILES • 4 CYL • 2WD • AUTOMATIC

SHARMA123

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I got Acura Integra 2000 having 118000 Miles on it. Two weeks back the chk engine light turned on with OBD code PO420, the mechanic changed the catalytic convetor assuming cat convertor performingunder efficiency and he advised me to drive 100 miles , but the chk engine again turned on after 50 miles. Next time he says there is crack and o2 sensor not functioning , which he welded and also replaced oxygen sensor. It worke fine for 300 miles but today again chk engine light on, I am really frusterated, pl suggest wt can be the reason.

Sep 4, 2009 at 8:18 PM

KHLOW2008

CAR REPAIR CONTRIBUTOR
41,814 POSTS

Hi sharma123,

Get a scan done to confirm what the code is. It could be something else. If it is thesame code. recheck the exhaust system for leaks.

If O2 sensor and catalytic converter were aftermarket, I would not rule out the possibility of them giving way.

Sep 5, 2009 at 1:25 PM

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