Author Topic: off for a decat custom what about 2nd o2 sensor advice NOW WITH PICS/VID  (Read 7847 times)

Offline davemk4

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Re: off for a decat custom what about 2nd o2 sensor advice
« Reply #10 on: 15 February 2013, 11:23 »
Only using cat for mot time rest ill be drving catless
2001 mk4 GTI 1.8t AUM. k&n induction kit with customer heat shield, 3'' TIP, Forge 007P, Stage 1 map, N249 bypass, 3'' downpipe and decat, 2.75'' Jetex cat back non res, Koni shockers and H&R springs 35mm, dimpled and grooved disks front and back

Offline asboGTI

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Re: off for a decat custom what about 2nd o2 sensor advice
« Reply #11 on: 15 February 2013, 16:14 »
my ARZ has got the ebay special on it and its fine no engine lgiht thrown up yet just a lovely noise to annoy the neighbours
vw golf mk4 ARZ 1.8T pipercross panel filter, xenon headlights, JOMS coilovers, forge 007p with green spring, audi tt anti roll bar, 3inch ebay trubo back exhaust, COOKIES MONSTER STICKER(adds bhp I swear)

Offline dom

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Re: off for a decat custom what about 2nd o2 sensor advice
« Reply #12 on: 15 February 2013, 16:29 »
Mines a aum so a sneeze sets the light on lol

+1  :angry:

Mine is also AUM, and as said above, been running without the cat for 5k+ miles without any warning lights :grin:

Offline davemk4

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« Last Edit: 15 February 2013, 20:58 by davemk4 »
2001 mk4 GTI 1.8t AUM. k&n induction kit with customer heat shield, 3'' TIP, Forge 007P, Stage 1 map, N249 bypass, 3'' downpipe and decat, 2.75'' Jetex cat back non res, Koni shockers and H&R springs 35mm, dimpled and grooved disks front and back

Offline davemk4

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Engine light now on gay AUMS :-(
2001 mk4 GTI 1.8t AUM. k&n induction kit with customer heat shield, 3'' TIP, Forge 007P, Stage 1 map, N249 bypass, 3'' downpipe and decat, 2.75'' Jetex cat back non res, Koni shockers and H&R springs 35mm, dimpled and grooved disks front and back

Offline Wazzzer

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is that with the 2nd lambda spaced out?


1999 1.8T: R-Tech remap - 225bhp/256lb/ft : K03s : THS FMIC : THS PCR pipe : 2.5" stainless exhaust : THS FR3 Engine mounts : G60/VR6 clutch : Calibra Yellow injectors : VR6 MAF : Devils Own WMI : Forge 007p : Carbonio CAI : Leon Cupra R Brembos : FK AK Street coilovers : Votex skirts : Anniversary front : click ---> http://www.golfgtiforum.co.uk/index.php?topic=92175

Offline davemk4

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Yer it comes in at angle higher out. Unless they done far enough?
2001 mk4 GTI 1.8t AUM. k&n induction kit with customer heat shield, 3'' TIP, Forge 007P, Stage 1 map, N249 bypass, 3'' downpipe and decat, 2.75'' Jetex cat back non res, Koni shockers and H&R springs 35mm, dimpled and grooved disks front and back

Offline mar_k

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My mates AUM has been running this exhaust for a few months now with no issues other than breaking the rear Lambda

Offline arran1993

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I have just fitted a  n249 delete and 3" turbo back with decat to me aum golf and it's brought the light on and gone I to limp mode. Any ideas

Offline Chris.

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unscrew lambda and tie it up out the way.  Or get it mapped out properly.

Old thread but sticking a OEM cat on a decat downpipe is utterly pointless.

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248bhp  278lbft R - Tech Powered 1.8T!!  - Gone but NOT forgotton