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Model specific boards => Golf mk4 => Topic started by: paulwayman on 02 November 2010, 14:25

Title: aum de cat is this possible
Post by: paulwayman on 02 November 2010, 14:25
just i have heard you cannot de cat these engines as you get running problems is this right has anyone got this done on aum engine   :wink:
Title: Re: aum de cat is this possible
Post by: Hulmie on 02 November 2010, 14:32
think there is alot of people that run AUM's with de-cats. It will fail mot on emissions and think you need the lambda elements mapping out
Title: Re: aum de cat is this possible
Post by: vwblackmk4gti on 02 November 2010, 14:38
when i enquired to av my aum de-cat, by long life they said with the obd2 protocols, the vag vehicle av running issues after de-cating
Title: Re: aum de cat is this possible
Post by: pipbailey on 02 November 2010, 15:09
Quote from: vwblackmk4gti on 02 November 2010, 14:38
when i enquired to av my aum de-cat, by long life they said with the obd2 protocols, the vag vehicle av running issues after de-cating

Only issues are engine light due to a higher reading from the rear 02 being out of the threshold, but with one byte change in the mapping the car will run 100% spot on with out any engine lights or fault codes.

Title: Re: aum de cat is this possible
Post by: paulwayman on 02 November 2010, 15:27
Quote from: pipbailey on 02 November 2010, 15:09
Quote from: vwblackmk4gti on 02 November 2010, 14:38
when i enquired to av my aum de-cat, by long life they said with the obd2 protocols, the vag vehicle av running issues after de-cating

Only issues are engine light due to a higher reading from the rear 02 being out of the threshold, but with one byte change in the mapping the car will run 100% spot on with out any engine lights or fault codes.



thought so as any car should run ok with no cat just cell light need wiping and a map to get best results  :wink: