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P0420 error

Fit / Jazz model year 2008 onwards
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wildfaye29
5000rpm
5000rpm
Posts: 190
Joined: Mon Mar 01, 2004 3:31 pm

P0420 error

Post by wildfaye29 » Sun Feb 25, 2018 10:17 pm

Hi all, I have a end 2008 Fit GE6 1.3 CVT. i am the 3rd owner. mileage if 108k, if its legit - unverified.

just bought recently and experienced a fault code P0420 - read it as catalyst bank1 fault.

does anyone know what it means? the dealer i bought from claimed its the hurricane air filter and replaced a new stock one for me. the error occured after abt 10 days.

i read on the internet that its the air flow sensor in the cat or worst its the cat faulty and needs a replacement.

hope to find a cheap and good fix.

thanks!

MycivicX
Posts: 2
Joined: Wed Sep 20, 2017 9:25 pm

Re: P0420 error

Post by MycivicX » Mon Feb 26, 2018 12:18 pm

you may want to try changing oxygen sensor.


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wildfaye29
5000rpm
5000rpm
Posts: 190
Joined: Mon Mar 01, 2004 3:31 pm

Re: P0420 error

Post by wildfaye29 » Mon Feb 26, 2018 2:39 pm

Thanks for your input.

How much would replacement cost?

Can existing one be cleaned to save on replacement cost?

MycivicX
Posts: 2
Joined: Wed Sep 20, 2017 9:25 pm

Re: P0420 error

Post by MycivicX » Mon Feb 26, 2018 2:53 pm

I have no idea on the cost of sensor. I think should be around 300 dollars or may be less with labour. It is almost like replacing spark plug may require a special tool and the location of the sensor could be tricky. You can ask mechanic to use scan tool to check first. Worst case is the cat converter. I have experience with my accord after a car accident, the error pop up. Change sensor then error came back a month later. Some said need to use original part. At the end left it and drove until car scraped. No issue to pass inspection for my case.


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wildfaye29
5000rpm
5000rpm
Posts: 190
Joined: Mon Mar 01, 2004 3:31 pm

Re: P0420 error

Post by wildfaye29 » Mon Feb 26, 2018 8:30 pm

Thanks again.

After the check light came on, the car feels rough and jerky at low speeds. I hope everything is ok.

When n no error, very smooth, hope is just the car being sensitive to existing fault code that is picked up.

I will try get the dealer to fix the prob for me. hopefully.

This car is good for coe renewal. wasted to scrap.

Fitme
Posts: 2
Joined: Thu Sep 05, 2019 11:52 am

Re: P0420 error

Post by Fitme » Thu Sep 05, 2019 11:57 am

wildfaye29 wrote:
Mon Feb 26, 2018 8:30 pm
Thanks again.

After the check light came on, the car feels rough and jerky at low speeds. I hope everything is ok.

When n no error, very smooth, hope is just the car being sensitive to existing fault code that is picked up.

I will try get the dealer to fix the prob for me. hopefully.

This car is good for coe renewal. wasted to scrap.
Hey, I will like to know the outcome for your issue? Facing the same problem.

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