1998 Ford Expedition "nox" Questions

I want to know where the knock sensor is ,in a ford expedition 1998 4.6 by picture Do you mean NOX sensor ? I believe on that unit it is on the exhaust system just under the exhaust manifold right ...

...Gas Recirculation) valve controls an engine's emission of smog-causing nitrous oxides, or NOx. Its job is to route a portion of the exhaust gases back into the intake manifold. That lowers ...

Emissions failing with high NOx took my mitsubishi through CT emissions 4 times and failed everytime on nox only, my numbers dropped a little everytime with repairs until i put the new egr valve on ...

My Toyota echo did not pass smog high Nox what could be wrong? strong fuel smell rich as mechanic tells me and hesitation upon take off from light in 1st gear . i had replaced the Fuel pressure ...

high nox fail smog test any remedies? 99 high nox fail smog test any remedies? 99 astro van changed plugs & plug wires ... Van Runs better need to pass smog nox is to high NOX is created when the ...

I have a 95 grand jeep cherokee and i have failed 2 emission they say it is a the NOx is to high what would cause that? What causes High NOX EmissionsThousands of technicians have faced the challenge ...

what is the meaning of a failing test with NOx(ppm) Oxides Of Nitrogen (NOX) Above 2500 degree engine combustion temperature nitrogen bonds to oxygen to form NOX The EGR Valve is supposed to allow a ...

I have a 93 Honda del sol with ridiculously high nox. It does not have a egr system. Has new cat. How do I get nox down. In California. Thanks. Nox is caused by high combustion temps. A lean mixture ...

what are the causes for NXo reading A high NOx reading can be caused by any conditions that make the engine run lean. Vacuum leaks will dilute the fuel/air mixture with excess air leading to lean ...

vw crafter NOx sensor I have recently replaced this emission control sensor in my car as I was facing different error codes due to a failed NOx sensor. This sensor is a life savor and deserves a shout