'07 TL-S Check Engine light on but want to clear it, how?
#1
Cruisin'
Thread Starter
'07 TL-S Check Engine light on but want to clear it, how?
My check engine light came on last week randomly while I was on the highway and the code was P0420: Catalytic Efficiency Not Supported..
I know it's not the converter. I've maintained my car and engine constantly. But I'm trying to clear the code so I can test and see if it really is the converter or if it's the sensor that's messing up. Because those are two different fixes with two very different fix prices!! Anybody know how to clear the codes? Because apparently it's "illegal" for a auto parts shop to do it. They'll check it for free...but they can't clear it. Lol fml
I know it's not the converter. I've maintained my car and engine constantly. But I'm trying to clear the code so I can test and see if it really is the converter or if it's the sensor that's messing up. Because those are two different fixes with two very different fix prices!! Anybody know how to clear the codes? Because apparently it's "illegal" for a auto parts shop to do it. They'll check it for free...but they can't clear it. Lol fml
#2
Suzuka Master
Unplug the negative battery terminal for 5 mins or buy your self a obd2 scanner and erase it.
#3
06 Anthracite TL
Clearing the code as above can be done with an inexpensive OBDII reader, but if it comes back, you're going to have to address it. I vaguely recall getting this code in my car years ago- I swapped out both O2 sensors, and the code never returned. Catalytic convertors generally don't fail, but O2 sensors do- if the code comes back after clearing it, I'd recommend changing both O2 sensors and use Honda branded sensors vs universal type.
#4
Cruisin'
Thread Starter
Clearing the code as above can be done with an inexpensive OBDII reader, but if it comes back, you're going to have to address it. I vaguely recall getting this code in my car years ago- I swapped out both O2 sensors, and the code never returned. Catalytic converters generally don't fail, but O2 sensors do- if the code comes back after clearing it, I'd recommend changing both O2 sensors and use Honda branded sensors vs universal type.
#5
06 Anthracite TL
^^ You could probably get away with an aftermarket part, but for the emissions system, I'd go OEM (that's just one opinion however).
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