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#1
02-08-2004, 04:12 PM
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Failed NO Emissions Test
My 95 Firebird failed its emissions test yesterday....blew away all of the individual components other than NO%. Never had any problems passing in the past and appears/sounds to be running well. Any suggestions on what might be the cause here before I submit it to the garage for who knows how many hours of labour!
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#2
02-19-2004, 06:29 PM
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Re: Failed NO Emissions Test
yer probably goint to have to go to a shop if the engine liht is not cuz u could have bad injectors or cat there is a lot of crap that could couse yer problem
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#3
02-23-2004, 08:16 PM
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Re: Failed NO Emissions Test
did you have it tested twice? could be a bad test. other than that how are the sparkplugs, wires, egr valve. NOx comes from high heat in the combustion chamber ie, your egr valve isn't opening, or is clogged.
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#4
02-23-2004, 11:39 PM
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Re: Failed NO Emissions Test
Try buying some synthetic Carb cleaner and cleaning out the Intake manifold and then take the car to a shop that does high pressure fuel system cleaning, If yours on the east coast Mavis or GoodYears do this for about $ 70.00 and you should be set. If its something bigger than this its usually caused by a failed or missing emission's part
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RIP Hypsi - I just want to express I will never be the same after having lost such a good friend. You meant alot to me and I feel I am a better person for having known you. Til the day we meet again my friend you will always be in my heart. Mods: Weight reduction (I don't wear underwear) Last edited by FormulaLT1; 02-26-2004 at 01:59 AM.
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