CHK ENGINE LIGHT ON

2000 Acura

Tiny

sharma123

September, 4, 2009 AT 8:18 PM

Engine Mechanical problem
2000 Other Acura Models 4 cyl Two Wheel Drive Automatic 11800 miles

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.

FOUND 16891 RELATED QUESTIONS

1 Answer

Tiny

KHLow2008

September, 5, 2009 AT 1:25 PM

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.

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