My wifes 2005 Hyundai Tuscon has 90,000 miles. The check engine light
came on and we took it to the Dealer who tells us that the Catalytic Converter is bad and it will be $900 to fix it. Can I do it myself? Where can I find the converter. I have searched the internet and cant find one.
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There not exist any computer reset that correct a emission out of range. If the car is running without the check engine light comes lit ( it means if you drive the car more than 40 miles and the check engine light remains off) and the emissions are out of the range, is necessary check if the engine is operating in normal coolant temperature ( half way to the top), check if the air filter is free, check for the spark plugs are working properly, and check if the catalytic converter is at least in 13% of CO2. Also check with a scanner tool if have any engine code stored in the memory.
code p0420 refers to catalytic converter system bank 1 --efficiency below threshold ===causes -- catalytic converter ---wiring---HO2S 2 sensor
The cheapest part to replace is the HO22S sensor so I would do that first. Bump the cat converter soundly with the heal of your hand and if it rattles it needs replacing as it will be cracked internally. Dismiss any tinny rattle as that will be the heat shield loose
The time taken to replace both in an accredited shop will be less than 1 hour so it may pay to shop around and compare prices on the converter and labour costs.
Could possibly be a loose connection on the oil sending sensor or the sensor itself may be on its way out. Most sensors are located on the side of the engine block usually on on or near where the oil filter attaches.
When a 'check engine light' (MIL=Malfunction Indicator Lamp) is turned on, there is a DTC (Diagnostic Trouble Code) set/stored in the ECM/PCM (Engine Control Module/Powertrain Control Module). This code identifies which engine management system component/function experienced a malfunction. Once you pull/read this code, you may begin diagnosis.
What was the exact code? The O2 sensor after the Catalytic Converter, or Rear O2 Sensor, could be faulty which would cause the computer to think the Catalytic Converter is not working efficiently. The code can be reset at the auto parts store with the same code reader they used the first time. P0420 is the most commonly thrown OBDII code pertaining to catalytic converter efficiency below threshold. I would replace the O2 sensor after the Catalytic Converter and reset the computer to see if the code comes back. If it comes back you may have a bad catalytic converter, exhaust leak, damaged
exhaust pipes, damaged O2 sensor wiring/connectors, plugged catalytic converter,
Tuneup time is around 90,000 to 100,000 miles.If it were to ignition coil you would feel the misfire. Plugs, wires, airfilter and fuel filter should be changed before cat is. Plugs will tell the story.
What is 'cadalis' code? ... catalytic converter efficiency below threshold? If so, it's not the O2 sensor. The converter is worn out if the code is catalytic converter efficiency. Sorry, expensive repair.
HEY EVERYONE.... SORRY FOR THE CAPS BUT I FINALLY FOUND SOMEONE WITH A BRAIN AND GOT THIS PROBLEM FIXED FOR FREE!!!!!!!! Now I have about 20 forums to go back to and save hundreds of PT Cruiser Owners the time money and aggrevation we have all experienced.
I have to give my friend John (now in my opinion the best auto mechanic in South Florida) the credit. Took him 10 minutes to give me the answer, took several Chrysler dealerships about 5 visits and weeks of diagnostics to finnaly agree with him!
The Solution: Replace the Catalytic Converter (FREE under 100,000 mile warranty - every car)!
Quote from dealer service receipt "check vehicle for stalling. found catalytic converter plugged up. Replaced catalytic converter." part# 5085905AC CONVERTER-CATALYTIC part# 4881012AB GASKET-EXHAUST MANIFOLD T
Please spread the word to all user groups - but give John credit! - Thanks, Rickster