Can any of the experts tell my why only Tip's have secondary air injection?

Eric 2.7 · 09-19-2005, 05:38 AM

donp · 09-19-2005, 05:58 AM

Tip cars generally have lower engine speeds in those first few crucial minutes of a cold start compared to a manual transmission. This causes more time to get the cat "lit" and start cleaning the exhaust. Air injection helps with all this to lower emissions until things are ready. You may notice Tip cars also shift much later after a cold start. My A6 will stay in 1st gear until almost 2500 RPM right after a cold start even with very light throttle... when hot it will drop into 2nd almost as soon as the car moves off.

donp · 09-19-2005, 06:07 AM

~~ModifiedA4~~ · 09-19-2005, 06:11 AM

donp · 09-19-2005, 06:19 AM

Eric 2.7 · 09-19-2005, 06:19 AM

Eric 2.7 · 09-19-2005, 06:20 AM

~~ModifiedA4~~ · 09-19-2005, 06:28 AM

donp · 09-19-2005, 06:31 AM

I'm tempted to unplug it before it does and just reconnect it (hoping to preserve it's lifespan) and just clear the codes when my state inspection rolls around.

Hal_TT::CBP · 09-19-2005, 06:47 AM

09-19-2005, 05:38 AM	#1
Eric 2.7 AudiWorld Super User Garage is empty, add now Join Date: Aug 2003 Posts: 2,808	Can any of the experts tell my why only Tip's have secondary air injection? __________________ Eric 2000 A6 2.7T DIY Mule: Full Timing Belt Replacement, Cam Seals & Cam Tensioner Gaskets, Engine Mounts (TWICE! Thanks Hamburg-Technic/ECS), O2 Sensors, 2ndary Coolant Pump, '03 OEM Sport Suspension, H-Sport Sway Bars, Control Arms, Tie Rod Ends, CV Joint Boots & All Kinds of Maintenance Stuff. Retired: 1996 A4 2.8 2wd 12v 1987 4000CS Quattro 1980 4000 2door (not even an "S")

09-19-2005, 05:58 AM	#2
donp AudiWorld Super User Garage is empty, add now Join Date: Nov 2000 Posts: 11,085	Re: Can any of the experts tell my why only Tip's have secondary air injection? Tip cars generally have lower engine speeds in those first few crucial minutes of a cold start compared to a manual transmission. This causes more time to get the cat "lit" and start cleaning the exhaust. Air injection helps with all this to lower emissions until things are ready. You may notice Tip cars also shift much later after a cold start. My A6 will stay in 1st gear until almost 2500 RPM right after a cold start even with very light throttle... when hot it will drop into 2nd almost as soon as the car moves off. __________________ National Sarcasm Society (like we need your support)

09-19-2005, 06:07 AM	#3
donp AudiWorld Super User Garage is empty, add now Join Date: Nov 2000 Posts: 11,085	mmm. I don't believe 1.8t manuals do. My 1.8t did not have the electric blower. __________________ National Sarcasm Society (like we need your support)

09-19-2005, 06:11 AM	#4
~~ModifiedA4~~ Banned Garage is empty, add now Join Date: Mar 2000 Posts: 34,550	DBW 1.8t manuals do (2000+)

09-19-2005, 06:19 AM	#5
donp AudiWorld Super User Garage is empty, add now Join Date: Nov 2000 Posts: 11,085	Mine was a '97. That's progress for ya. ;) __________________ National Sarcasm Society (like we need your support)

09-19-2005, 06:19 AM	#6
Eric 2.7 AudiWorld Super User Garage is empty, add now Join Date: Aug 2003 Posts: 2,808	That makes perfect sense. I did notice that the Tip shifts higher on the first start. __________________ Eric 2000 A6 2.7T DIY Mule: Full Timing Belt Replacement, Cam Seals & Cam Tensioner Gaskets, Engine Mounts (TWICE! Thanks Hamburg-Technic/ECS), O2 Sensors, 2ndary Coolant Pump, '03 OEM Sport Suspension, H-Sport Sway Bars, Control Arms, Tie Rod Ends, CV Joint Boots & All Kinds of Maintenance Stuff. Retired: 1996 A4 2.8 2wd 12v 1987 4000CS Quattro 1980 4000 2door (not even an "S")

09-19-2005, 06:20 AM	#7
Eric 2.7 AudiWorld Super User Garage is empty, add now Join Date: Aug 2003 Posts: 2,808	Looks like no one will be immune from this "enhancement" in the future : ) __________________ Eric 2000 A6 2.7T DIY Mule: Full Timing Belt Replacement, Cam Seals & Cam Tensioner Gaskets, Engine Mounts (TWICE! Thanks Hamburg-Technic/ECS), O2 Sensors, 2ndary Coolant Pump, '03 OEM Sport Suspension, H-Sport Sway Bars, Control Arms, Tie Rod Ends, CV Joint Boots & All Kinds of Maintenance Stuff. Retired: 1996 A4 2.8 2wd 12v 1987 4000CS Quattro 1980 4000 2door (not even an "S")

09-19-2005, 06:28 AM	#8
~~ModifiedA4~~ Banned Garage is empty, add now Join Date: Mar 2000 Posts: 34,550	in this case, progress means more parts that can break...and they do, alot :)

09-19-2005, 06:31 AM	#9
donp AudiWorld Super User Garage is empty, add now Join Date: Nov 2000 Posts: 11,085	The air pump on my A6 is LOUD. I suspect it will fail soon. I'm tempted to unplug it before it does and just reconnect it (hoping to preserve it's lifespan) and just clear the codes when my state inspection rolls around. __________________ National Sarcasm Society (like we need your support)

09-19-2005, 06:47 AM	#10
Hal_TT::CBP AudiWorld Super User Garage is empty, add now Join Date: Mar 2000 Posts: 9,754	Hey Don, when did you go A6? __________________ Hal. My German car history... '11 S4 Premium +, 6sp, Ti, Nappa, Carbon, SportDiff, B/O, Nav/Park current Audi '01.5 S4 Shizzle #3 ... purchased 09/03/10, Nogaro/Blue Sport '10 Dodge DS Gen4 Ram 1500(designed by Germans lol) '03 TT 225QC ... sold 09/23/10, Ocean/Sea '01.5 S4 APR Stg3 ... sold 09/10/08, Silver/Silver '01.5 S4 Ordered, Silver/Silver, Lemoned 5mos after purchase '00 996 Cab, Blk/Blk on Silver '98.5 A4 QMS Avant, Santorin/Ecru with blue trim '96 Jetta GLX VR6 '95 Jetta GLX VR6 '92 E36 Coupe - Lemoned 4mos after purchase

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode


Discussion Forums: