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Author Topic: drop in power until 3000rpm, FINALLY FIXED BY STATLLERS!!!!  (Read 22783 times)

Offline heavyd

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Re: drop in boost until 3000rpm, any ideas?
« Reply #15 on: July 06, 2012, 05:35:28 pm »
Oh well, crank and cam sensors were changed today at PDT.
Running out of ideas now, has anyone have any ideas they can think of by any chance?

Offline vRSAlex

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Re: drop in boost until 3000rpm, any ideas?
« Reply #16 on: July 06, 2012, 05:38:41 pm »
Did Dave check to see if the crank pulley has spun?

Cracked head?
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Offline heavyd

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Re: drop in boost until 3000rpm, any ideas?
« Reply #17 on: July 06, 2012, 09:08:33 pm »
Did Dave check to see if the crank pulley has spun?

Cracked head?

Not sure. But Looks like I'm going to be wasting a lot of money again!

Offline Andy

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Re: drop in boost until 3000rpm, any ideas?
« Reply #18 on: July 06, 2012, 09:40:12 pm »
 :surprised:sorry to hear this Dom

Offline E30Dom

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Re: drop in boost until 3000rpm, any ideas?
« Reply #19 on: July 07, 2012, 12:56:19 am »
Aww this sucks Dom! Is this the same car you had all your previous issues on? Dom
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Offline heavyd

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Re: drop in boost until 3000rpm, any ideas?
« Reply #20 on: July 07, 2012, 05:31:41 am »
Yes Dom, its the very same car I went through this with 6 months ago :sad1:

Offline E30Dom

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Re: drop in boost until 3000rpm, any ideas?
« Reply #21 on: July 07, 2012, 09:57:30 am »
Just remind me if you will what the last answer was, I thought you went back to standard... Seems every time you start tuning her up it throws faults highlighting and underlying problem...

Oh bloody hell... Hope you can get it sorted... Could you try the Ecu on another car to rule that out... Then you'll know it's hardware... If its something like a temp./ cam position/ throttle sensor surely they would give a fault...

Has the timing belt been changed... Worth changing and setting up again?
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Offline heavyd

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Re: drop in boost until 3000rpm, any ideas?
« Reply #22 on: July 08, 2012, 11:34:04 am »
Just remind me if you will what the last answer was, I thought you went back to standard... Seems every time you start tuning her up it throws faults highlighting and underlying problem...

Oh bloody hell... Hope you can get it sorted... Could you try the Ecu on another car to rule that out... Then you'll know it's hardware... If its something like a temp./ cam position/ throttle sensor surely they would give a fault...

Has the timing belt been changed... Worth changing and setting up again?

Theres no fault codes, timing belt was changed last year, though was taken off when the engine was done. all markings are correctly lined up. I looked at the haynes manual, and I think it would be very hard for the timing belt to slip past the key?

Last time the cams wer incorrectly lined up, it didnt throw a fault code either. I did have a fault code a few weeks ago
000017 - Bank 1: Camshaft A (Intake)
               P0011 - 004 - Retard Setpoint not Reached (Over-Advanced) - Intermittent
000022 - Bank 1: CMP Sensor (G40) / Engine Speed Sensor (G28)
               P0016 - 008 - Incorrect Correlation - Intermittent

Offline PDT

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Re: drop in boost until 3000rpm, any ideas?
« Reply #23 on: July 08, 2012, 03:42:40 pm »
Ive not given up yet, determined to get this one solved. Theres some very odd things going on with the ignition advance at idle that dissapear when you engage drive.

A test of TDC position vs crank alignment marks lead me to believe that the crank wheel has not slipped.

Offline heavyd

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Re: drop in boost until 3000rpm, any ideas?
« Reply #24 on: July 08, 2012, 04:34:39 pm »
Is there the slightest chance that the ECU has gone a little corrupt? is has been flashed once or twice?

Offline Andy

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Re: drop in boost until 3000rpm, any ideas?
« Reply #25 on: July 08, 2012, 05:01:36 pm »
don't suppose the cam shafts have gone out of timing again

Offline heavyd

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Re: drop in boost until 3000rpm, any ideas?
« Reply #26 on: July 08, 2012, 05:11:49 pm »
no theyve been checked, the car drives the same as it did when they were out though :stupid:

I also did the DSG basic settings aswell to rule that out aswell

Offline robdf2

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Re: drop in power until 3000rpm, any ideas?
« Reply #27 on: July 09, 2012, 07:31:34 pm »
Ahhhhhh Dom
 I feel for you buddy Mike pointed me to this thread.
Have you checked the cam shaft variator ? There is a sPring that becomes week or the cam shaft variator can come loose inside and cause timing issues.
Mike thanks for the link mate I'm I turkey at the mo so not texting costa fortune.
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Offline Tfsi_Mike

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Re: drop in power until 3000rpm, any ideas?
« Reply #28 on: July 09, 2012, 07:35:02 pm »

No worries Rob, thanks for the input.  Yours was an epic to diagnose!

Offline heavyd

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Re: drop in power until 3000rpm, any ideas?
« Reply #29 on: July 10, 2012, 03:41:56 am »
Thanks for the suggestion. Is it the n205 valve?
Was this what was wrong with yours Rob?