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1992 Acura Legend Failed Emission Test

Tiny
BRAKEMAN1
  • MEMBER
  • 1992 ACURA LEGEND
Put premium fuel in the car and drive it for half an hour to an hour then take it to get tested, do not shut the car off what so ever. My 92 legend failed that same test until one of the guys that dose the emission test said that unless the car is warm and operating at the normal temperature that it would run at normally. Some repair shops try to rip consumers off by skewing the tests.
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Monday, December 15th, 2008 AT 5:30 PM

3 Replies

Tiny
WAJO22
  • MEMBER
  • 1 POST
Hello,

My 1992 acura legendr has failed the state emission test 3 times. The failure is due to a high NOx reading. The first time I failed, the technician recommended that I replaced the CAT, which I did, but still failed. Then, one of the mechanics here suggested an EGR cleaning. Again, the car failed. However, something happened during the 3rd test: the car passed the 25/25 test with a NOx reading of 420 ( required is 796) but failed the 50/15 test with a NOx reading of 1620. Now, I have no idea what should be done next. I'd appreciate your thoughts on this matter. Thanks in advance.
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Monday, June 4th, 2007 AT 11:33 PM
Tiny
BRUCE HUNT
  • MECHANIC
  • 3,754 POSTS
I am surprised that no one suggested the O2 sensors be replaced. In Japan, they usually put on about 30 to 40K of miles on the engine and pull the engine to put in a new one. They have very strict emissions testing there. O2 sensors is a consideration or a move to North or South Dakota as we have no emissions testing in the states.
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Monday, June 11th, 2007 AT 3:34 PM
Tiny
BRAKEMAN1
  • MEMBER
  • 3 POSTS
Put premium fuel in the car and drive it for half an hour to an hour then take it to get tested, do not shut the car off what so ever. My 92 legend failed that same test until one of the guys that dose the emission test said that unless the car is warm and operating at the normal temperature that it would run at normally. Some repair shops try to rip consumers off by skewing the tests.
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Monday, December 15th, 2008 AT 5:30 PM

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