Acceleration loss due to turbo lag?

**T-sport** · 10-09-2006, 12:06 PM

Took my car up the motorway today and it pulled fine in 1st to 3rd gear till i hit about 80mph and then as i was in 4th couldnt get any further quick acceleration.It felt like turbo lag and the only way i could get more power and speed up was to ease off the gas a bit and then on again.Can anyone confirm this is a turbo problem or something else like a sign of a failing coil pack or spark plug replacement?
Cheer t-sport.

**AllWheelGrip** · 10-09-2006, 02:29 PM

could it be heat soaking or check ur turbo inlet and outlet hose, they might be coming off

**T-sport** · 10-10-2006, 12:41 PM

Checked the turbo hoses alls ok.Whats heat soaking you refer to Allwheelgrip? Could it be bad spark plugs or coil pack(like a misfire issue) as there now due a change from Audi 80k service.
I hope its not something serious.

**RickT** · 10-10-2006, 12:49 PM

I guess you have not got your copy of VAG-COM/lead as yet??

could be a coil pack as that makes you loss power on low revs, my coil packs went down around 80k.

I replaced all 4 at £25 each, you could buy one, change it in Cylinder 1 and then drive, if the problem is still present place the new one on Cylinder 2 and replace the old one back to cylinder one to find out which one it is...

However VAG-COM could tell you that within a min.... (i have got 3 old coil packs which i replaced to save any hassle which work fine at home which i guess you can borrow to test) just drop us a £1 or 2 for the postage on the basis it gets returned)

Cheers

Rickt

**T-sport** · 10-10-2006, 04:53 PM

Cheers for the kind offer rick,i havent got vag-com as yet but as its due its major 80k service now so gonna put it into audi dealership anyway.Its a bit weird as ive got power lower down in the rev band but looses(hesitates) after 4000 rpm under load and then comes back again.Maybe its the MAF playing up??

**RickT** · 10-10-2006, 05:33 PM

yeah no worries, just remeber the coil packs are £25 each and are only held in with 2 screws so dont let audi for charging the world!

yeah it could be the airflow meter.. best get it on VAG-COm as we could be here all day as you well know!!

Cheers

Rickt

**AllWheelGrip** · 10-10-2006, 07:13 PM

heat soakage is when the turbo and intercoolers are hot and ur only blowing hot air now, its normal though

**T-sport** · 10-11-2006, 12:13 PM

Quote:

Originally Posted by AllWheelGrip

heat soakage is when the turbo and intercoolers are hot and ur only blowing hot air now, its normal though

Would this in turn be a cause of turbo hesitation(lag feel) then?Is there anywayof correcting it? cheers t-sport

10-09-2006, 12:06 PM	#1 (permalink)
T-sport Super Moderator Join Date: Sep 2005 Location: Devon,uk Posts: 1,467 Gallery: (0)	Acceleration loss due to turbo lag? Took my car up the motorway today and it pulled fine in 1st to 3rd gear till i hit about 80mph and then as i was in 4th couldnt get any further quick acceleration.It felt like turbo lag and the only way i could get more power and speed up was to ease off the gas a bit and then on again.Can anyone confirm this is a turbo problem or something else like a sign of a failing coil pack or spark plug replacement? Cheer t-sport. __________________ 2002 1.8 T Avant 18" TT Quattro Replicas Forge Motorsport DV

10-09-2006, 02:29 PM	#2 (permalink)
AllWheelGrip Super Moderator Join Date: Jun 2005 Posts: 1,725 Gallery: (0)	could it be heat soaking or check ur turbo inlet and outlet hose, they might be coming off __________________ There are many paths to the top of the mountain but the view will always be the same

10-10-2006, 12:41 PM	#3 (permalink)
T-sport Super Moderator Join Date: Sep 2005 Location: Devon,uk Posts: 1,467 Gallery: (0)	Checked the turbo hoses alls ok.Whats heat soaking you refer to Allwheelgrip? Could it be bad spark plugs or coil pack(like a misfire issue) as there now due a change from Audi 80k service. I hope its not something serious. __________________ 2002 1.8 T Avant 18" TT Quattro Replicas Forge Motorsport DV

10-10-2006, 04:53 PM	#5 (permalink)
T-sport Super Moderator Join Date: Sep 2005 Location: Devon,uk Posts: 1,467 Gallery: (0)	Cheers for the kind offer rick,i havent got vag-com as yet but as its due its major 80k service now so gonna put it into audi dealership anyway.Its a bit weird as ive got power lower down in the rev band but looses(hesitates) after 4000 rpm under load and then comes back again.Maybe its the MAF playing up?? __________________ 2002 1.8 T Avant 18" TT Quattro Replicas Forge Motorsport DV

10-10-2006, 07:13 PM	#7 (permalink)
AllWheelGrip Super Moderator Join Date: Jun 2005 Posts: 1,725 Gallery: (0)	heat soakage is when the turbo and intercoolers are hot and ur only blowing hot air now, its normal though __________________ There are many paths to the top of the mountain but the view will always be the same

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10-10-2006, 12:49 PM	#4 (permalink)
RickT Super Moderator Join Date: Feb 2005 Location: West Yorkshire, UK Posts: 1,638 Gallery: (0)	I guess you have not got your copy of VAG-COM/lead as yet?? could be a coil pack as that makes you loss power on low revs, my coil packs went down around 80k. I replaced all 4 at £25 each, you could buy one, change it in Cylinder 1 and then drive, if the problem is still present place the new one on Cylinder 2 and replace the old one back to cylinder one to find out which one it is... However VAG-COM could tell you that within a min.... (i have got 3 old coil packs which i replaced to save any hassle which work fine at home which i guess you can borrow to test) just drop us a £1 or 2 for the postage on the basis it gets returned) Cheers Rickt

10-10-2006, 05:33 PM	#6 (permalink)
RickT Super Moderator Join Date: Feb 2005 Location: West Yorkshire, UK Posts: 1,638 Gallery: (0)	yeah no worries, just remeber the coil packs are £25 each and are only held in with 2 screws so dont let audi for charging the world! yeah it could be the airflow meter.. best get it on VAG-COm as we could be here all day as you well know!! Cheers Rickt

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