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was it done at a toyota dealer? if the light came on right after they did the timing belt, then they messed something up. they might have missed the timing by a tooth or so, or left something disconnected. do me a favor: please check the air box where your air filter is located. there is a...

P0420 is a code for "catalyst efficiency below threshold". which means you have to replaced the catalytic converter with a TOYOTA catalytic converter. unfortunately is very expensive. even more unfortunately is that if you buy an aftermarket CAT, it most likey will not meet toyota's threshold...

P0420 is a code for "catalyst efficiency below threshold". which means you have to replaced the catalytic converter with a TOYOTA catalytic converter. unfortunately is very expensive. even more unfortunately is that if you buy an aftermarket CAT, it most likey will not meet toyota's threshold...

These codes mean nothing. they should have a letter before the numbers that indicate if it's a powertrain, body control, etc., problem.

These codes mean nothing. they should have a letter before the numbers that indicate if it's a powertrain, body control, etc., problem.

These codes mean nothing. they should have a letter before the numbers that indicate if it's a powertrain, body control, etc., problem.