Check engine light 0420

[ASRACER4]

replaced cat and both o2 sensors
after resetting light drive car for an hour then
then the light comes on again.
the water temp seems low when the light sets.
water temp stays on the first 1/4 then almost drops to blue band.
what does your water temp read under normal conditions.
thanks

[weezer]

Temp gauge should at the half mark....always.
Replace the thermostat......if you haen't replaced the water pump or radiator(optional), you might as well do it too. Our thermostats are designed to fail open, so keeping the car's coolant flowing at all times. You may notice that your car is slightly quicker, because the ECU senses the car cold and runs it slightly richer.........this MAY be the CEL issue.
Good LUck and keep us updated.
Fariz

[ASRACER4]

Temp gauge should at the half mark....always.
Replace the thermostat......if you haen't replaced the water pump or radiator(optional), you might as well do it too. Our thermostats are designed to fail open, so keeping the car's coolant flowing at all times. You may notice that your car is slightly quicker, because the ECU senses the car cold and runs it slightly richer.........this MAY be the CEL issue.
Good LUck and keep us updated.
Fariz

good call weezer swapped out themostat today and problem fixed
thanks by the way the way autohaus in arizona had the best price
good delivery time

[weezer]

Glad to be of help.