HELP! I failed emissions!!! CO level too high

dc2002 · 07-21-2001, 06:06 AM

They test for Hydrocarbons, NO, and CO. Everything else was well below the max level. The CO level was just over the max. Any suggestions before I go for my re-test.

Thanks in advance

MikTip · 07-21-2001, 08:06 AM

Evilclown · 07-21-2001, 08:37 PM

AudiSport4000 · 07-22-2001, 01:39 PM

dc2002 · 07-22-2001, 04:30 PM

A 1984 4000S quattro

Evilclown · 07-22-2001, 08:02 PM

that you need a voltmeter with a special connector to splice into the differential pressure regulator sockets to get the duty cycle reading. aside from the type of meter and the way it's connected, the procedure is pretty much the same.

MikTip · 07-23-2001, 06:35 PM

Adjustment can be done with plain wire, no "special" connector needed.

An 1984 4000 has "mechanical" CIS, with the warm-up reg.

Evilclown · 07-23-2001, 07:52 PM

07-21-2001, 08:06 AM	#2
MikTip AudiWorld Expert Garage is empty, add now Join Date: Jun 2000 Posts: 29,354	Yah! Have it adjusted. There's a small allen head adjustment inside the fuel metering assy. for CO. __________________ 2004 A4 1.8t USP Quattro 6MT K04-15/APR/TT 225 Injectors/Custom Stainless Exhaust/710N/RaceTec FMIC 034 HFC/Jet-Hot Cermi-coated & ported exhaust manifold Spec Stage 3+ with OE DMFW! Neuspeed TIP/Neuspeed Snub/Optima 75-35/AFE Pro-Dry/FSI Coils AMS Short-shift @ %40 redux(Sweet!) ST Coils/ H-Sport Anti-Sway bars/E-codes 19x8.5 OEM Audi Skinny Fives with 235-35 Bridgestone 760 Sport Skins B7 A4 brakes with StopTech Ceramic pads and Stop Tech rotors Sirius Satellite Radio Ross-Tech HEX-USB+CAN Equipped Escort 9500ix

07-21-2001, 08:37 PM	#3
Evilclown AudiWorld Uber User Garage is empty, add now Join Date: Dec 2000 Posts: 41,192	There's a thread on it a bit further down this forum. What year/model car?

07-22-2001, 01:39 PM	#4
AudiSport4000 AudiWorld Super User Garage is empty, add now Join Date: Jun 2001 Location: Indiana Posts: 17,032	Change the cat!

07-22-2001, 04:30 PM	#5
dc2002 AudiWorld Member Garage is empty, add now Join Date: Jan 2001 Posts: 121	Re: There's a thread on it a bit further down this forum. What year/model car? A 1984 4000S quattro __________________ '99 A4 Avant 2.8 Tip '01 Disco II SE7

07-22-2001, 08:02 PM	#6
Evilclown AudiWorld Uber User Garage is empty, add now Join Date: Dec 2000 Posts: 41,192	Hmm, that's CIS-E, isn't it? The procedure is much the same, except... that you need a voltmeter with a special connector to splice into the differential pressure regulator sockets to get the duty cycle reading. aside from the type of meter and the way it's connected, the procedure is pretty much the same.

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07-23-2001, 06:35 PM	#7
MikTip AudiWorld Expert Garage is empty, add now Join Date: Jun 2000 Posts: 29,354	Re: CIS-"E" did not appear until 1987 and later 4000's 80's 90. Adjustment can be done with plain wire, no "special" connector needed. An 1984 4000 has "mechanical" CIS, with the warm-up reg. __________________ 2004 A4 1.8t USP Quattro 6MT K04-15/APR/TT 225 Injectors/Custom Stainless Exhaust/710N/RaceTec FMIC 034 HFC/Jet-Hot Cermi-coated & ported exhaust manifold Spec Stage 3+ with OE DMFW! Neuspeed TIP/Neuspeed Snub/Optima 75-35/AFE Pro-Dry/FSI Coils AMS Short-shift @ %40 redux(Sweet!) ST Coils/ H-Sport Anti-Sway bars/E-codes 19x8.5 OEM Audi Skinny Fives with 235-35 Bridgestone 760 Sport Skins B7 A4 brakes with StopTech Ceramic pads and Stop Tech rotors Sirius Satellite Radio Ross-Tech HEX-USB+CAN Equipped Escort 9500ix

07-23-2001, 07:52 PM	#8
Evilclown AudiWorld Uber User Garage is empty, add now Join Date: Dec 2000 Posts: 41,192	Follow the post as written, then.

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