Check engine light comes and goes store code P2423 2005 Toyota Camry 2.4L

Question

2005 Toyota Camry 2.4L engine

The codes come and goes randomly.

Check engine light will come on stay on for a few days then go off for several weeks even months.

Check with OBDII analyzer shows P2423 Code when the check engine light is on

Clear code and 24hrs later everything OK C/E light off and no stored codes

Voltage on #1 oxygen sensor 3.2-3.3 volts

The voltage on #2 oxygen sensor 0.175-0.9 volts varies with engine speed and load

The voltage on #3 oxygen sensor 0.175-0.9 volts varies with engine speed and load

Sometimes #2 is higher than #3 other times they are reversed

Answer 1

P2423 TOYOTA - HC Adsorption Catalyst Efficiency Below Threshold Bank 1

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