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technical help needed for ep6dt

xplod

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Joined: Oct 18, 2010 Posts: 4 Posts Left: 0
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What Peugeot do you own?: 207
How did you find Peugeot Central?: Google
Age: 36
Gender: Male
Insurance renewal month: January

PostPosted: Thu 04 Nov, 2010 7:04 am Reply with quote
I have 207gt (ep6dt, 150hp) and it feels like the engine is not producing even 100hp.

before anybody bets on cam timing to be out, it is checked 3 times and seen perfectly OK.
the chain tensioner is replaced with new version.
VVT solenoid is functional, planet software says that the phase shift is syhcron with crank position.
turbo had been reconditioned.
engine cylinder head is reconditioned, valve guides, seals had been renewed.
main and big end bearings are renewed.
piston rings are replaced.
mechanically, engine is almost in %100 condition.
planet software says that there is no knocking offset on the cylinder timings.
I got my exhaust gas checked for emissions, lambda seems to be 1,02 idling, same on 2000rpm and 4000 rpm.
CO levels are quite low, leading to think that my fuel consumption is too low, which is not true at all!

I attached a scan gauge II to obd port and monitor the boost, timing, load and throttle position all the time while testing.
symptoms;
when idling, ignition timing is around 0degrees. stand still, when I rev up to around 2000rpm, timing goes up to 30degrees. above 2000rpm, it goes down to around 5 degrees, all the way up to rev limiter.
if I try to drive the car, in the very low rpms, below 2000, it feels like it will go great but after 2000, meanwhile, boost rises up to 175kpa, since ignition retards to around 5 to 0 degrees, the power is lost again.
after trying this 2-3 times in 10 minutes run, if I open the hood and check the turbo, I can easily see that turbo is burning and gloving red, even can bee seen under daylight. but there is no error code produced by ecu.

something confusing; attached the planet software to the car while cruising, says that ignition timing is around 25 degrees when I floor the pedal even after 2000rpm but scangauge says that its retarded to 0 degrees. and the engine really runs like there is no advance on the timing, almost dead. gloving turbo is another proof of retarded timing.

(this problem started after engine is renewed. before renewing, car was 137hp on the dyno, oil consumption was far too high)

thanks in advance for any kind of ideas.
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Re: technical help needed for ep6dt

toddy

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Joined: May 21, 2009 Posts: 2681 Location: ilkley,west yorkshire Posts Left: 1
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What Peugeot do you own?: 307
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Age: 36
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Insurance renewal month: January

PostPosted: Thu 04 Nov, 2010 9:10 am Reply with quote
hi,,what valve lift/reference is seen on planet??? 9mm???

toddy
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so lucky to work on french!!!!!
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Re: technical help needed for ep6dt

xplod

On the Grid On the Grid
Joined: Oct 18, 2010 Posts: 4 Posts Left: 0
Status: Offline
What Peugeot do you own?: 207
How did you find Peugeot Central?: Google
Age: 36
Gender: Male
Insurance renewal month: January

PostPosted: Thu 04 Nov, 2010 11:00 am Reply with quote
hi, thanks for your reply.
it was around 35 degrees shift on the inlet cam as referance after 2000rpm. exactly as the planet software informs. planet also says that actual shifting degree is synchron with crank sensor.
xplod
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Re: technical help needed for ep6dt

toddy

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Joined: May 21, 2009 Posts: 2681 Location: ilkley,west yorkshire Posts Left: 1
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What Peugeot do you own?: 307
How did you find Peugeot Central?: Google
Age: 36
Gender: Male
Insurance renewal month: January

PostPosted: Thu 04 Nov, 2010 3:01 pm Reply with quote
hi,know i mean the lift value/reference?
it shows it in mm,i'm wondering if the vvt motor(solenoid i assume its your ref??? is not functioning correctly and has defaulted to the 9mm setting,hence power loss etc,,,,due to excess valve lift,which would also effect the valve overlap??

toddy
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so lucky to work on french!!!!!
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Re: technical help needed for ep6dt

xplod

On the Grid On the Grid
Joined: Oct 18, 2010 Posts: 4 Posts Left: 0
Status: Offline
What Peugeot do you own?: 207
How did you find Peugeot Central?: Google
Age: 36
Gender: Male
Insurance renewal month: January

PostPosted: Thu 04 Nov, 2010 4:01 pm Reply with quote
hi again toddy,
correct me if I am wrong, this engine has fixed valve lift. ecu only shifts the angle of inlet cam. 35 degrees of referance I was mentioning was inlet cam shifting angle. maybe it was me misleading you to think so, by saying VVT instead of VCT in my first post?
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Re: technical help needed for ep6dt

xplod

On the Grid On the Grid
Joined: Oct 18, 2010 Posts: 4 Posts Left: 0
Status: Offline
What Peugeot do you own?: 207
How did you find Peugeot Central?: Google
Age: 36
Gender: Male
Insurance renewal month: January

PostPosted: Tue 09 Nov, 2010 6:07 am Reply with quote
ok gentlemen, there is an update;

engine performs perfect when the VVT solenoid cable is disconnected. the problem will be because of one of the reason below;
-faulty VVT solenoid
-faulty camshaft dephaser pulley
-shifted rotor on the camshaft, the rotor that faces the cam position sensor.
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