What causes unburned fuel in catalytic converter?
Unburned Fuel Entering the Exhaust System. This can over-heat the converter far beyond its normal operating limit. Possible causes are an improper fuel mixture, incorrect timing, bad spark plugs, a malfunctioning oxygen sensor, sticking float, defective fuel injector or a faulty check valve.
Where is the catalytic converter on a Pontiac Vibe?
The catalytic converter collects the exhaust waste from the engine and reduces as many pollutants as possible. The converter on a Vibe is bolted to the exhaust manifold, but welded to the exhaust pipe.
How much does a catalytic converter reduce emissions?
By most estimates, catalytic converters fitted inside the exhaust pipe of a gasoline-operated car convert over 90% of hydrocarbons (HC), carbon monoxide (CO) and nitrogen oxides (NOx) from the engine into less harmful carbon dioxide (CO2), nitrogen and water vapour.
Can a bad fuel filter cause a Toyota Matrix to stall?
One of the worst problems that can happen to your Toyota Matrix is a bad fuel filter. When the filter goes bad, it can limit the amount of fuel that enters the engine. Without fuel, the vehicle will not run at all. With that in mind, most of the symptoms of a bad fuel filter revolve around the vehicle stalling out.
What does premium fuel do for a catalytic converter?
Another interesting factoid, albeit one that’s a bit contorted: Premium fuel is good for a catalytic converter. In allowing advanced timing of ignition, the fuel has a longer burn duration. This in turn gives more time for heat transfer within the combustion chamber—which results in reduced temperature of exhaust gases.
Where is the fuel filter on a Chevy Sonic?
Things began to change in the 80’s. Fuel injection requires higher fuel pressure. Higher fuel pressure meant that a more robust fuel filter would be required. This meant the fuel filter was no longer left under the hood. It was put in the steel fuel line, between the gas tank and engine bay.
What happens if you replace the catalytic converter?
If you spend $900 or more to replace the catalytic converter, you may discover the check engine light coming on again later. Some mechanics will tell you to try replacing the oxygen sensors first, to see if that solves the problem. There are two of them, one before and one after the catalytic converter.