Question about 1998 Nissan 200SX

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FAILED EMMISSIONS MY 1998 NISSAN SERENA FAILED EMMISSION TEST.I CHANGED CATALYTIC CONVERTER BUT STILL FAILED.PLEASE HELP

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Hello what you need to do is throw a fresh set off plugs in the motor go to your parts store ask to buy a bottle off emmission pass follow the instructions you should be okay goodluck please rate

Posted on Oct 02, 2008

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If you cannot quickly accelerate, might be catalytic converter, oxygen sensors, mass air flow (MAF) sensor. Might even be EGR valve. Have trouble codes read at the auto parts store for free and update y ok ur post for me gelp.

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I have a 1998 Nissan Maxima GLE, I Failed the Emission Inspection (DTC) Diagnostic Trouble Codes of "P1492","P1105" What these Codes exactly? mean


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1989 Dodge Raider just failed emmission test...HC ppm Reading 485 allowed 185---CO% reading 10.50 allowed 2.36 what can i do to reduce numbers?


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Apr 30, 2012 | 1989 Dodge Raider

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Have a2005 deville with the code po741 cant pass ca. smog need to what dose it takes to fix this problem


Hi,

Code P0741 = Torque Converter Clutch Circuit Performance or Stuck Off. This relates to your transmission only and has nothing to do with Exhaust emmissions.

If failed smog test, there must be an issue within your emmission system, e.g. sensors etc

You will need to have your codes read again, or have your vehicle properly inspected.


Cheers,

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Leak in exhaust tubing upstream of converter
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Damaged cold air duct
Failed or malfunctioning catalytic converter
Corroded or damaged engine sensor electrical connections.the best advice is to take it to a emission specialist to check it out! good-luck!

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Engine code p1140 n p0505 not sure what they mean for 1998bmw 740il trying to pass emmission test.


Generally when u can not pass the emission test your catalytic converter needs to be replaced. J.

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I have a Pontiac Vibe 2003 P0420 error code. What


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Good luck

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1 Answer

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Change the oil, this should lower it enough to get you through, also run the car on the freeway if possible to heat up the catalytic converter as much as possible, leave it running and wait for the test to be run, I was a smog tech for years and these are the tricks I used to get cars to pass that were as close to the limit as yours.

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