PO420 solutiuon!

[shanus888]

Ahh the dreaded PO420 code, after months of clearing the code myself and researching then losing interest im now determined to fix this as cheaply as possible. Things that i have learnt about this code and people that have tried everything are: replacing the cat is a waist of time, replacing sensors is a waist of time, installing an extender spacer is a waist of time.
The only proper fix that i have found with no negative feed back is to upgrade the ECM software (PAC FILE UPDATE FOR CATALYTIC SYSTEM) in your car which for some reason was never offered in Australia but in every other country nor have local Subaru dealers heard about this update. Now my mechanic does have this software that he had to purchase from Germany for $250, and is willing to install it for $275.
The question is: has anyone seen this software online for free or cheeper? please help its such a pain in the arse to have to clear the codes every 2 weeks and then have the idle reset only to have me hopping along the streets trying not to stall the engine!

[BillyCorgi]

Subaru Check Engine Light and Code # P0420 Explained
https://allwheeldriveauto.com/subaru-ch ... explained/

I believe that Matt may also address this issue when he flashes one of his tune, however he may need to confirm. Cheers!
Matt has put a tune on No.2 Son's MY09 Liberty 2.5i. Brilliant!

[veefa bspec]

Subaru Check Engine Light and Code # P0420 Explained
https://allwheeldriveauto.com/subaru-ch ... explained/

I believe that Matt may also address this issue when he flashes one of his tune, however he may need to confirm. Cheers!
Matt has put a tune on No.2 Son's MY09 Liberty 2.5i. Brilliant!

I was going to post this q & a in " my words" but why should I . explained correctly HERE.

and furthermore .......

[veefa bspec]

BillyCorgi you are spot on again

YOU must of done this b4 LOL

well quoted that ref to that site to that point to that is po42o..

very common youtube ex to that code . but I have to say you hit it on the head.

im board help me, as in - help me Whats the solution???????????????????

[BillyCorgi]

help me Whats the solution???????????????????

The solution is to contact Matt a.k.a KiDo_Tuning.
Matt will flash the ECU so it does not perform the Catalytic Converter check and , hey presto, no more P0420.
I also understand that Matt will do that for free?

My best advice to anyone is to pay for and get a full tune while he is there. You will not be disappointed.

[Gyro Gearloose]

Hey fellow Nambuccaian

Id hit up Matt (kiddo) he is based is Coffs and most likely has a tune to fix this

[KiDo_Tuning]

I can do a full proper tune on the car AND get more power/torque and better economy

[veefa bspec]

I can do a full proper tune on the car AND get more power/torque and better economy

You Have Delivered , Thankyou Matt you are a tuning Ninja . Car drives Great big thumbs up ++++++++++
Highly recommended..

Veefa Bspec

[BillyCorgi]

I can do a full proper tune on the car AND get more power/torque and better economy

You Have Delivered , Thankyou Matt you are a tuning Ninja . Car drives Great big thumbs up ++++++++++
Highly recommended..

Veefa Bspec

We told you, didn't we?!?

[veefa bspec]

I can do a full proper tune on the car AND get more power/torque and better economy

You Have Delivered , Thankyou Matt you are a tuning Ninja . Car drives Great big thumbs up ++++++++++
Highly recommended..

Veefa Bspec

We told you, didn't we?!?

He,s a hard man to reach but yes you were right. bow to you both , cheers peter