2000 audi spuddering under full throttle

derek072887 · 03-15-2008, 07:07 PM

driving my new audi for the first time today since delivery. it has an apr 93 octane chip, evolution motorsports intake, and a borla exhaust. anyways i was driving the car to get it to operating temp and when it finally warmed up i decided to see what it had. well i take off from a stop sign lightly and get to second gear and lay into it. the boost guage goes to up and as soon as it gets to 10psi the engine starts missing and acting up. so i get out of it and baby it back home..... i checked the throttle body boot and all other hoses but can't find any cracks or holes anywhere.... any advice guys??

derek072887 · 03-16-2008, 11:46 AM

forgot to mention its a 2000 audi s4 with the 6speed.

Mawhitey · 03-26-2008, 06:13 AM

My first stop would be the spark plugs as chipped cars tend to need slightly smaller gaps due to higher cylinder pressure

**docurley** · 03-26-2008, 07:13 AM

Check the DV's are ok as these can play up if old and also check the spark plugs as stated, other than that MAF's are a known issue with the S4 but I would VAGCOM it to see if you have any other prob's.

03-15-2008, 07:07 PM	#1 (permalink)
derek072887 Newbie Join Date: Mar 2008 Posts: 2 Gallery: (0)	2000 audi spuddering under full throttle driving my new audi for the first time today since delivery. it has an apr 93 octane chip, evolution motorsports intake, and a borla exhaust. anyways i was driving the car to get it to operating temp and when it finally warmed up i decided to see what it had. well i take off from a stop sign lightly and get to second gear and lay into it. the boost guage goes to up and as soon as it gets to 10psi the engine starts missing and acting up. so i get out of it and baby it back home..... i checked the throttle body boot and all other hoses but can't find any cracks or holes anywhere.... any advice guys??

03-26-2008, 06:13 AM	#3 (permalink)
Mawhitey Member Join Date: Oct 2006 Posts: 31 Gallery: (0)	My first stop would be the spark plugs as chipped cars tend to need slightly smaller gaps due to higher cylinder pressure __________________ 1.8t conversion : Ko4-15 : Vmaxx Coils : 6 Speed 'Box : SPEC Stage 3 Clutch : S4 Heated Leather : Facelift Console and Shiney paint

03-26-2008, 07:13 AM	#4 (permalink)
docurley Super Moderator Join Date: Sep 2006 Location: London Posts: 680 Gallery: (6)	Check the DV's are ok as these can play up if old and also check the spark plugs as stated, other than that MAF's are a known issue with the S4 but I would VAGCOM it to see if you have any other prob's. __________________

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03-16-2008, 11:46 AM	#2 (permalink)
derek072887 Newbie Join Date: Mar 2008 Posts: 2 Gallery: (0)	forgot to mention its a 2000 audi s4 with the 6speed.

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