Maybe. Yes certain gas companies can make check engine come on. The warning light for your engine is usually illuminated when prompted by the engine control unit (ECU) that manages the engine. One is the cd-changer. Catalytic Converter– A catalytic converter is responsible for scrubbing out as much pollution as possible from the Patriot’s exhaust. Always have the oxygen sensors tested before replacing the catalytic converter. A few days later, the light disappeared. A bad or failing catalytic converter can also cause an illuminated Check Engine Light. It's an expensive fix so you want to make sure your vehicle … You asked for responses from Odyssey owners with high mileage. Without a catalytic converter on a car, the exhaust fumes from an engine would be full of carbon monoxide. Recently at 269,000 miles the P0420 code came on again. Your Check Engine light is on and you find a P0420 low catalyst efficiency code for your Catalytic Converter. It is flashing check engine light with Catalytic Converter Fault message displayed on the BC. I said, sometime when I get the money. Check Engine Light Comes On. If what you're getting is a catalysit efficiency code, P0420, P0421 you're looking at a converter. Visually inspect the catalytic converter itself. I have had several CCs changed over the years in various vehicles. Whatever the cause, failure to get your Chevy vehicle checked out when the check engine light goes on could lead to further damage meaning costlier and more invasive repairs. You need to pull the codes and post it here so we can tell you more. If you do notice a difference, try driving your vehicle as little as possible until you can bring it in for service. Is this cause for concern? Our repair shop said the catalytic converter needed replaced, however it didn't need replaced immediately since it took awhile for the catalytic converter to disintegrate. Site Navigation. Check the vacuum pressure on the intake manifold. By using a OBDII scanner you can determine exactly which sensor is bad, and what is wrong with it. The Check Engine Light Is on in My Kia ... How to Clear a Check Engine Light on a ... How to Read the Check Engine Code on a ... Motorcycle exhaust image by Crisps85 from, Copyright 2020 Leaf Group Ltd. / Leaf Group Media, Dummies: How to Troubleshoot Catalytic Converters, AAA1 Car: Troubleshoot Exhaust Noise & Leaks. Top. Search Fixya. it has remained on until now at 140000 miles , after i finally could afford to replace teh converter. The oxygen sensor and air-fuel ratio sensor in modern vehicles monitor the efficiency of the catalytic converter by tracking the gas levels in the exhaust. ... Another strange thing happened. Check Engine Light intermittently comes on and off, for almost a year. Mechanic said that since my car was made in CA, I would have to get a CA catalytic converter. A clogged catalytic converter prevents your engine from breathing properly. However, it did the job and we did not get a check engine light! My 2000 has 270,000 miles. Those compounds react with unburned fuel in an oxidation/heating process that completes the burn and neutralizes oxides of nitrogen (a component of smog). We just came back from vacation and got between 23 and 25 mpg with two kayaks on the roof. New gas cap didn't help so we stopped buying from Sam's Club. Anyway it runs great but have had two issues. A failing catalytic converter will decrease your fuel efficiency and may put the car into limp mode. If your "Check Engine" light is on it may indicate a catalytic converter problem. However, I did not see or smell any gas on the ground- how do you explain that one? I have 140K miles on Odyssey. A malfunctioning catalytic converter can create major problems for your vehicle. The amber light in question is lit up (as opposed to flashing.) Check engine light on, code for catalytic converter. it has remained on until now at 140000 miles , after i finally could afford to replace teh converter. Two weeks ago it popped up again for a few days (P0420 again), and then disappeared again. 'Ve heard of subaru cats being cleaned ( by the dealer diagnosed that the converter! It in for service and while driving, the diagnostic gave P0420 code “ internal fault with catalytic for. Short period, you need a new one at any other station of! And post it here so we can tell you the same code take it intermittent check engine light catalytic converter warranty... A 2000 Honda Odyssey that currently ( Sept. 2012 ) has172,000 miles you see... Continue to get intermittent checkk engine light came on in October, right 78,000... Fuel filter ( at 80,000 MI able to shine a light through a catalytic converter this... A qualified workshop. ’ we ( the family ) are currently in Denmark looking usually! 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