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High HC readings at idle....

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Audi Original "S" Cars Discussion forum for the Audi Audi Ur S4, Ur S6, S2 & RS2

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09-24-2007, 10:36 AM

Tornado //S6

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High HC readings at idle....

o2 sensor? At 2500rpm the readings are fine. Everything else is within spec, just HC at idle(reads 204, limit is 125). Car was warmed up and I wrung it out on the highway for about 10 mins before the test-oil temps were high, coolant temp 75C or so. Any other ideas? Thanks!

R

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09-24-2007, 11:30 AM	#2
kinderutz AudiWorld Super User Garage is empty, add now Join Date: Jun 2005 Posts: 2,597	seafoam? __________________

09-24-2007, 11:41 AM	#3
4Driver4 Tech Guru Garage is empty, add now Join Date: Oct 2002 Posts: 32,305	Change your oil. Old oil will sent HC sky high. __________________ 4Driver4 "Never give up the throttle until the bitter end." -RC 2005 A6 Sedan Q 3.2 (wife's whip) 2000 A4 Avant Q 2.8 (daily driver) 2003 Mini Cooper S (Fun!) 1995 Mazda Miata: the anti-Audi 1999 Mazda Miata SSB: track beotch 2003 GMC Yukon Denali XL: the anti-earth 2004 Dodge Dakota: hey, at least it's stick and 4x4

09-24-2007, 01:20 PM	#4
Jason C AudiWorld Senior Member Garage is empty, add now Join Date: Apr 2001 Posts: 1,953	'I like to chew gum... filters out the pollutants' ...'do some slipstreaming... ...there's Fred, won't he be suprised __________________ Jason C 3rd one 2nd one 1st one All gone

09-24-2007, 01:20 PM
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