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Author Topic: turbo problems 2.0tfsi 2005 flat / no boost  (Read 14110 times)

Offline woolley2021

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turbo problems 2.0tfsi 2005 flat / no boost
« on: February 02, 2015, 05:17:44 pm »

Hi can someone help I'm having issues with my car 05 tfsi axx engine , the car was previously a mates who noticed the car was not running correct so instead of looking into the issue he took it to street wise bristol and had "stage 2 " revo software put on the car around 4 months ago which he says did not change the cars power! When it was mapped they ran a vag com ill try attach pics code 008567 bank 1 , system too lean off idle .. also 000256 mass air flow, supply voltage intermittent which they cleared the codes , the car has the new rev d diverter as I fitted it last week which was not needed as it already had this also new pcv by what I can see ...is there any way telling what pcv I have ? Was told it was the newer one 

The car is like driving a 2.0 naturally aspirated car no pull as you'd get from a turbo .....in lower gears 3rd or 4th going slow and put your foot down you'd hear a slight (shhhh) from the turbo but no pull ... but if driven threw the gear it's as if I'm driving a standard 2.0L focus

no lights on no codes appearing on snap on diagnosis tool 

I had the car up on ramps Saturday nothing looks out of place reved the car couldn't feel any air coming from any pipes ?? Does anyone have any suggestions it would be highly appreciated

Offline jaye2992

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Re: turbo problems 2.0tfsi 2005 flat / no boost
« Reply #1 on: February 02, 2015, 08:41:10 pm »
Sounds like the issue i am having with my 2006 atm :/ i have looged the boost and the max is 4psi. Waiting to change the DV and then get it to the garage if its the same. Have you looked at any boost gauges/logs?

Offline woolley2021

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Re: turbo problems 2.0tfsi 2005 flat / no boost
« Reply #2 on: February 02, 2015, 09:18:25 pm »
No logs yet but as for psi id say running same as you or maybe less I have a new diverter on mine :(

Offline jaye2992

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Re: turbo problems 2.0tfsi 2005 flat / no boost
« Reply #3 on: February 02, 2015, 09:21:15 pm »
Yea feels like not but it's registering some....I had a problem with mine where the actuator snapped when I bought it but there was no boost at all then. Need to get mine looked at but sounds similar to your problem!  Hoping a dv fixes mine. Have you tested the MAF sensor?

Offline woolley2021

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Re: turbo problems 2.0tfsi 2005 flat / no boost
« Reply #4 on: February 02, 2015, 09:59:56 pm »
Is there a way to test the maf ? As I don't want to start spending on things I don't need ,  Would the  maf effect the boost ?

Offline jaye2992

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Re: turbo problems 2.0tfsi 2005 flat / no boost
« Reply #5 on: February 02, 2015, 10:20:03 pm »
Yes just unplug it and the engine will run rough and or stall if it's working as it should. Not sure if it would tbh but worth a check with the error codes you mentioned above.

Offline woolley2021

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Re: turbo problems 2.0tfsi 2005 flat / no boost
« Reply #6 on: February 02, 2015, 10:24:10 pm »
Ah I did unplug it yesterday and the car ran no different pulled the same  when I initially  took the plug out the car had a lil grumble then ran and sounded normal drive the same plugged in or unplugged

Offline jaye2992

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Re: turbo problems 2.0tfsi 2005 flat / no boost
« Reply #7 on: February 02, 2015, 10:30:46 pm »
Hmm I'd say it's dead then....have you scanned for faults again lately? Mine runs rough and stalls without the MAF. Somebody with more knowledge should be able to confirm lol

Offline Dan_FR

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Re: turbo problems 2.0tfsi 2005 flat / no boost
« Reply #8 on: February 03, 2015, 08:14:37 am »
Simply unpliugging the MAF at idle will make no difference - it will still idle fine. Removing the MAF with it still plugged in (providing a false reading) will cause the car to stall.

I love how the answer to a car that's not 100% is "whack a map on it and clear the fault codes"!

You need VCDS logging done to see/understand what is going on. You can not rely on fault codes alone to tell you what is wrong with the car
TFSI... Revo Stage 2+... . WMI.... VCDS HEX + CAN, MPPS, VAG Commander & VAG tacho - South Wales

Offline woolley2021

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Re: turbo problems 2.0tfsi 2005 flat / no boost
« Reply #9 on: February 03, 2015, 08:23:32 am »
I no my mate who had the car before had 80k inheritance  so thought it would be easier to chuck another 600 quid at it plus fit a new exhaust lol and when that didn't sort it sold it to me for a fraction of what he paid ... but I'm now on a Misson to sort it out

Offline jaye2992

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Re: turbo problems 2.0tfsi 2005 flat / no boost
« Reply #10 on: February 03, 2015, 08:25:48 am »
That's the one thanks Dan!

Get some codes read and hopefully a cheap fix for you

Offline jaye2992

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Re: turbo problems 2.0tfsi 2005 flat / no boost
« Reply #11 on: February 04, 2015, 04:47:22 pm »
Don't know if this helps you but had mine looked at today and it's the actuator that has snapped...great! 2nd time in 5 months.....

Offline woolley2021

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Re: turbo problems 2.0tfsi 2005 flat / no boost
« Reply #12 on: February 05, 2015, 01:38:44 pm »
Ah ok and what symtoms did you have dude ? So far I have a brand new diverter , tried a known working maf , I have a new pcv  but no codes atall car would easily do 100 mph  but no / minimal boost

Offline jaye2992

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Re: turbo problems 2.0tfsi 2005 flat / no boost
« Reply #13 on: February 05, 2015, 01:51:42 pm »
No other symptoms except no power. It will get upto decent speeds just takes a while lol. No error codes or lights. Just had to get underneath and see that it wasn't attached

Offline woolley2021

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Re: turbo problems 2.0tfsi 2005 flat / no boost
« Reply #14 on: February 05, 2015, 02:21:55 pm »
I shall be getting back under asap ! Can you buy new  uprated actuators atall ?