Engine light on Catalytic converter RX400H?
My 2006 Lexus RX400H got engine light on. The diagnose showed Catalytic converter? At Auto zone suggested add Cataclean fuel cleaner. It worked for 3 months then 2nd time added same again. One month later again light is on . Added 3rd bottle. Now just 1 day later light is back again. Any suggestions please 122500 miles on.
- StpaulguyLv 71 month ago
Bad catalytic converter. replace it
- elhighLv 71 month ago
Stop trying to pour in a fix. Those are never better than merely temporary, assuming they ever do anything. Catalytic converters need periodic replacement, bite the bullet - and the bill - and replace the converter.
- thebax2006Lv 71 month ago
DUH...replace the catalytic converter?!Source(s): Mitsubishi Master Tech
- Anonymous1 month ago
It is time to replace the cat converter.
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- ArimatthewdaviesLv 71 month ago
Catalytic converter cleaner will clean out a catalytic converter temporarily the object of course is to pass inspection it's not a permanent cure the permanent cure is to replace the catalytic converter
- RonLv 71 month ago
Converter cleaner? I have a suggestion. Find out why the code popped up and fix THAT. Hint: It may not be the converter
- .Lv 71 month ago
Change the spark plugs, ignition coils, and upstream O2 sensor. That's assuming they have never been changed before.