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29/10/2021 11:29 am
Topic starter
I have a Rav4 2003, 2.0 VVt-i gasoline, manual transmission, 155.000 km. I get a P0420 code, changed both oxygen sensors but i still get the p0420. I thought my engine was burning oil and thats why my catalytic converter is clogged. Engine code is 1AZ-FE
Below i have some picture of my spark plugs, they all look just like this one. I noticed some minor grey blister on the electrode. The spark plugs have around 20.000km
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29/10/2021 5:30 pm
Well it's really not burning that much oil it will be covered with dark carbon that's more of the additives natgasoline that make it bad. Sometimes with age that cats just wear out but you might try my video fixing bad catalytic converters and try that cleaner first
