what could be my boost problem? MTM 1+ & VMAP on 93 octane

Sloooo4esT · 08-17-2006, 12:32 PM

boost behavior does not seem to be boost leak, boost builds and car pulls but not always smooth, sometimes feels like it builds in stages and if there are more people than just me in car it is more noticable more often, seems to clear up ever 4500 rpm and I believe I've felt it in all gears but first.
I guess its like hitting multiple deep water puddels like someonelse described a couple days ago. and sometimes it feels way faster/stronger than other times, totally random

710N seems to work right
I do not have a boost guage and my wastegate spring is backed out all the way (no threads showing). I have 1.9 bar spring never yet installed

please help, this is driving me nuts.

also believe turbo is burning oil, get grey smoke at idle and I guess also when I stomp on the gas. don't know if this would have anything to do with it.

EB_1920 · 08-17-2006, 12:41 PM

I'd start with the coil boots (cheapest).

chefbob · 08-17-2006, 12:42 PM

jjm's quattro · 08-17-2006, 12:44 PM

UrS4boy · 08-17-2006, 12:54 PM

Sloooo4esT · 08-17-2006, 12:57 PM

I have tested the coils and they all jumped bright and clean same distance, only tested each coil once though and ended up melting the tester wiring. my helpers (mechanics) were nervous to keep testing sparks.

I do not rule out that it may be a coil problem, i think it may be as well. seems to happen more often when car has been run for awhile. aka gettin hot which makes me think weak coil, yes?

thanks will run diff. coil setup and see what happens, I'll call back in the morning

MeLoN BaLLaR · 08-17-2006, 12:58 PM

UrS4boy · 08-17-2006, 01:01 PM

http://forums.audiworld.com/s4s6/msgs/115408.phtml

Sloooo4esT · 08-17-2006, 01:03 PM

Hoog23 · 08-18-2006, 04:40 AM

08-17-2006, 12:41 PM	#2
EB_1920 AudiWorld Super User Garage is empty, add now Join Date: Nov 2001 Location: Seattle, WA Posts: 2,223	Weak Coil? Bad POS? Coil Boots? I'd start with the coil boots (cheapest). __________________ ----------------------- Adam 95.5 S6 Avant w/ mods FrugalMechanic.com

08-17-2006, 12:42 PM	#3
chefbob AudiWorld Super User Garage is empty, add now Join Date: Nov 2004 Posts: 5,328	sounds coil related to me __________________ Whips in the stable 2002 Honda Rc51 1000cc v-twin 1993 Urs4 1995 90 quattro 1998 a4 1.8t 1986 4kcs 1999 F-deuce50 V-10

08-17-2006, 12:44 PM	#4
jjm's quattro AudiWorld Senior Member Garage is empty, add now Join Date: Oct 2002 Posts: 1,040	agreed - recent similar sympt - 5 new coils for me. Sympt gone. __________________ jjm 95.5 s6 sedan -black/black - his (euro sport springs/ bilsteins, FMIC, stromung gen 5 with the flex down pipe, APR snub mount, euro lenses, integrated garage door opener, c5 avus, VDO boost guage, Big blacks, ipod integration, full OEM RS2 with IA software, TDS-1) 09' X5 oil burner - the new kid hauler in a past life: 95.5 s6 avant - black/ecru - SOLD 98.5 A4 qms - sold for the s6 sedan 1991 80q sport - totaled on lakeshore drive 83 5000s 81 5000s 72 100ls

08-17-2006, 12:54 PM	#5
UrS4boy AudiWorld Super User Garage is empty, add now Join Date: Feb 2001 Posts: 18,183	Plugs while you're there. __________________ Naturally, IMHHEO(tm), Dave F. aka the Librarian Car and Mods: 93 S4, 1.8t coil pack conversion (First in world using integral POS coil packs (??)), CF (OE), S6 steering wheel, RS2'd, Samcos, MRC, TDS-1, Apikol FMIC, Eibach/Bilstein, BIRA Sys 1, relayed FP Click here to link to the UrS FAQ Thread Start Uncle Dave says "You want my 'high horse, elitist' opinion ?(IMHHEO(tm))Then just post something stupid." Unofficial Chief Cat-herder Vancouver UrS-car club

08-17-2006, 12:57 PM	#6
Sloooo4esT AudiWorld Super User Garage is empty, add now Join Date: Oct 2003 Posts: 4,893	pulgs, boots new last fall. 2 POS new 3 years ago I have tested the coils and they all jumped bright and clean same distance, only tested each coil once though and ended up melting the tester wiring. my helpers (mechanics) were nervous to keep testing sparks. I do not rule out that it may be a coil problem, i think it may be as well. seems to happen more often when car has been run for awhile. aka gettin hot which makes me think weak coil, yes? thanks will run diff. coil setup and see what happens, I'll call back in the morning __________________

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08-17-2006, 12:58 PM	#7
MeLoN BaLLaR Member Garage is empty, add now Join Date: Jan 2004 Posts: 48,437	my first thought __________________ BBQ Pizza Recipe, BaLLaR PiZZa BT founding member, Past Chariman, Current Chairman Mr. S <a href="http://forums.audiworld.com/other/msgs/6135562.phtml">Green_Vaccine & BaLLaR's Big-Booty-Lovers-Club Co-Founder ^^All races/walks of life welcome!!1^^ Big Booty Club Logo courtesy of Cursh-Yeth-Rly Enterprises </a> Noriceforyou Club Chubby-Chasers Former Member

08-17-2006, 01:01 PM	#8
UrS4boy AudiWorld Super User Garage is empty, add now Join Date: Feb 2001 Posts: 18,183	Check the URL http://forums.audiworld.com/s4s6/msgs/115408.phtml __________________ Naturally, IMHHEO(tm), Dave F. aka the Librarian Car and Mods: 93 S4, 1.8t coil pack conversion (First in world using integral POS coil packs (??)), CF (OE), S6 steering wheel, RS2'd, Samcos, MRC, TDS-1, Apikol FMIC, Eibach/Bilstein, BIRA Sys 1, relayed FP Click here to link to the UrS FAQ Thread Start Uncle Dave says "You want my 'high horse, elitist' opinion ?(IMHHEO(tm))Then just post something stupid." Unofficial Chief Cat-herder Vancouver UrS-car club

08-17-2006, 01:03 PM	#9
Sloooo4esT AudiWorld Super User Garage is empty, add now Join Date: Oct 2003 Posts: 4,893	anyone got good coils they want to toss out to me? please __________________

08-18-2006, 04:40 AM	#10
Hoog23 AudiWorld Senior Member Garage is empty, add now Join Date: Oct 2003 Posts: 1,324	Come to sfest and just swap out

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08-18-2006, 04:40 AM
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