2000 ACURA CHK ENGINE LIGHT ON

  • Tiny
  • sharma123
  • 2000 Acura

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.

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Friday, September 4th, 2009 AT 8:18 PM

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  • Tiny
  • KHLow2008
  • Expert
  • 41,994 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.

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Saturday, September 5th, 2009 AT 1:25 PM

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