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co, hc, high, low, misfire

What other than a misfire will cause high HC and low CO?

alpinab7 on 11-11-2005

11-11-2005 09:07 PM
by Paul EE

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1

311

Audi Original "S" Cars

02, 84, bmw, check, co, corvette, hc, hchigh, high, low, misfire, missfire, mixture, o2, rich, sensor, toyota

Can anyone corroborate this?: high HC and low CO =misfire; High HC and CO=rich mixture

alpinab7 on 10-03-2005

10-03-2005 07:28 PM
by Paul EE

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2

828

Audi Original "S" Cars

acetone, hc, hcs, ideas, idle, lower

Asking again: HC to high at idle. Ideas?

alpinab7 on 09-15-2005

09-15-2005 05:10 PM
by UR-maninblack

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3

468

Audi Original "S" Cars

1995, 2001, audi, bad, coil, gmc, hc, high, idle, lowering, pack, surburban, test, yukon

High HC at idle. Bad coil pack?

alpinab7 on 07-15-2005

07-15-2005 08:46 PM
by S4-Fireblade

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5

566

Audi Original "S" Cars

97, a8, audi, ca, california, coupe, emissions, hc, high, max, quattro, quattroboi

My Coupe Quattro just failed California Emission, with HC at 239.

Quattroboi on 01-07-2005

02-15-2005 07:16 AM
by BryanG

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8

343

Audi 90 / 80 / Coupe quattro / Cabriolet

90, 95, audi, emissions, emmissions, etest, excessive, fail, failed, hc, high, hydrocarbon, idle, levels, quattro

High HC levels at Idle! Failed emissions (long)

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Multi-page thread

1 2)

Bruch on 03-08-2004

03-09-2004 06:38 AM
by YucatanAudi

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12

7,190

Audi 90 / 80 / Coupe quattro / Cabriolet

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