Vw, 1.8TSI (CDA) P0011, double compression tower

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Benzineman
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Posts: 1
Joined: Mon Oct 22, 2018 7:25 pm

Vw, 1.8TSI (CDA) P0011, double compression tower

Post by Benzineman »

Hello,
I have an car that quits during a ride and after that starts, but won't run.

Troublecode P0011

I have checked timingmarks of the chain (spot on) Took a videoscope and looked into the cylinder (valves are ok) did an compression test (all the same 10/10,5 bar) did an incylinder pressure measurement (look at the picture) for all the cylinders excact the same capture. With intake valve's closed and exhaust valve's open put the smokemachine on (sparkplug hole) a d smoke is comming from exhaust tailpipe (so there isn't any blockage) I am thinking of an turned exhaust camgear (because it's the same at all cylinders) Before I start take it apart; what do you think?

Thanks for reading (and thinking; whats going on here...)
Attachments
Troublecode VCDS
Troublecode VCDS
Crank - Cam waveform
Crank - Cam waveform
Incylinder pressure, with extra compression stroke
Incylinder pressure, with extra compression stroke

Iver
TwoWaves
TwoWaves
Posts: 167
Joined: Mon May 27, 2019 2:55 pm

Re: Vw, 1.8TSI (CDA) P0011, double compression tower

Post by Iver »

Hi

As for your double compression tower the i would suggest the exhaust valve is opening, I have seen these engines break the Rocker rather than bend the valve.
I have an car that quits during a ride and after that starts, but won't run
However you say it will run then die ??

I have found this if it helps

16395/P0011/000017 - Bank 1: Camshaft A (Intake): Retard Setpoint not Reached (Over-Advanced)
Possible Symptoms
Power Loss

Possible Causes
Camshaft Adjustment Valve 1 (N205) faulty
Fuel Pump Relay (J17) faulty
Mechanical Timing not correct, including Chain and/or Belt timing.

Possible Solutions
Check Camshaft Adjustment Valve 1 (N205)
Check Fuel Pump Relay (J17) (applicable for vehicles with J17 only)
Check Mechanical Timing

Special Notes
When found in Engine: 4.0l W8
Check TPL 2010059(RoW)
Check/Replace Oil Sieve in Timing Case (Camshaft Adjuster)
When found in 2008 and newer VW 2.0T engine with a timing chain (example; CCTA and CBFA), please see:
TT 01-15-08 for information about the intake camshaft, adjuster bridge and spool valve.

https://static.nhtsa.gov/odi/tsbs/2020/ ... 9-0001.pdf

That may help you

wiki38andy
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Posts: 9
Joined: Sat Apr 18, 2020 4:45 pm

Re: Vw, 1.8TSI (CDA) P0011, double compression tower

Post by wiki38andy »

Exhaust camshaft advanced 3-4 teeth.

Iver
TwoWaves
TwoWaves
Posts: 167
Joined: Mon May 27, 2019 2:55 pm

Re: Vw, 1.8TSI (CDA) P0011, double compression tower

Post by Iver »

wiki38andy wrote:
Fri Sep 23, 2022 10:28 pm
Exhaust camshaft advanced 3-4 teeth.
Just looked at this again & I think you are Spot on !!
Exhaust Cam Advanced  Suspect Chain Slipped.jpg
I too thought a spun cam lobe (if it has hollow camshafts) but being a 16v 2 cams would have to slip exactly the same amount ?? Add to that you say you get the same on all 4 cylinders !!

This has to be the Exhaust Cam timing advanced or Inlet Retarded

Be good to know what you find Benzineman.

wiki38andy
Newbie
Posts: 9
Joined: Sat Apr 18, 2020 4:45 pm

Re: Vw, 1.8TSI (CDA) P0011, double compression tower

Post by wiki38andy »

Intake camshaft is on time , but exhaust is advanced roughly 60-70 degree which means 7 teeth of camshaft sprocket, more or less.
Attachments
111.png

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