T O P I C R E V I E W
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RAMIREZ707
Member # 4240
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posted
my car fail smog because my NO(ppm) # was high they told me it was my cats but I try two diferent set of stock h-pipes and I still didn't pass smog what else could be wrong?
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Black94 5.0
Member # 655
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posted
What engine mods or bolt ons have you done?...
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RAMIREZ707
Member # 4240
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posted
just pulleys,headers,k&n filter,flows
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88bird
Member # 1424
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posted
NOx is due to high combustion temps, you need to check the function of your egr system to see if its working properly.
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Jimbo
Member # 1456
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posted
quote: Originally posted by 88bird: NOx is due to high combustion temps, you need to check the function of your egr system to see if its working properly.
Yep!
Make sure, the EGR passages are clear, the EGR valve is opening when vaccum is applied, and the computer is opening the vaccum control switch. The EGR's only job is to reduce NOx, make sure that system is working properly!
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RAMIREZ707
Member # 4240
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posted
I think the egr is working fine because I suck on it and makes the car act funny but how do I check that the vaccum is coming on whene is supost to. what else can I check
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SoloSS
Member # 4380
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posted
quote: Originally posted by RAMIREZ707: my car fail smog because my NO(ppm) # was high they told me it was my cats but I try two diferent set of stock h-pipes and I still didn't pass smog what else could be wrong?
Going to the wrong people...
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