Question about 1995 Volkswagen Jetta
My husband put a gas cleaner in our 1995 jetta, then took it to get emissions (the engine wasnt warmed up-as well) it failed emissions due to high HC & high NOx. I believe because the motor wasnt hot enough and the gas cleaner still in the tank of gas- thats why it failed. The emissions place will not test it again untill it goes into a repair facility. They want the catalytic converter changed, yet the cat converter presence-passed? Who knows what else"replaced". It's more like a money game.
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Posted on Jan 02, 2017
first thing to do is change the air filter. even if it appears clean, the airflow can be blocked enough to affect the petrol air ratios in the engine which will give high HC readings.
changing the spark plugs can give a cleaner spark, and better ignition, with lower HCs. high HCs could also be caused by traces of oil getting through worn piston rings and valve stem seals and burning in the combustion chamber. there are many oil additives that can help stop this and reduce HC levels as well.
hope these suggestions help
Posted on Aug 28, 2011
EGR Ehaust Gas Recirculation system.the basic component is vacuum-operated control valve that recirculates the exhaut gases through the engine the engine intake manifld and cylinders where they recombine with the incoming air/fuel mixture.The check need special equipment, to some workshop.
sincerely. God bless you.
managua, nicaragua. c.a
see the diagram for details.
Posted on Mar 29, 2012
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