1994 Toyota Corolla

Tiny
MADMONROE
  • MEMBER
  • 1994 TOYOTA COROLLA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 95,500 MILES
Hi,

Recently, I took my vehicle for inspection and it failed for OBD/Emissions in NJ. The score was 1261 against the standard of 1242. I want to fix it up and take it for reinspection.

I'm hoping to fix it my self and looking for your help.

Thanks
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Saturday, April 11th, 2009 AT 9:35 AM

3 Replies

Tiny
RASMATAZ
  • MEMBER
What did it failed on?
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Saturday, April 11th, 2009 AT 9:40 AM
Tiny
MADMONROE
  • MEMBER
Hi Bob, Ken and all of the 2CarPros team,

Thanks for the prompt response.

It failed on NOx - The standard is 1242 but my vehicle score 1262
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Saturday, April 11th, 2009 AT 10:00 AM
Tiny
RASMATAZ
  • MEMBER
Either the engine is overheating or the EGR valve is not opening -when it does this there's no recirculation involves and combustion temperature will exceed 2500F therefore oxides of nitrogen will formed. Its job is to reduce the formation of NOX
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Saturday, April 11th, 2009 AT 5:17 PM

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