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Discussion Starter #1
Right where do the pipes go from the valve. 2.0hdi the electro valve at the back is the red one and has 2 pipes. 1 goes to the wastegate actuator and the other goes somewhere else. But what way round should they be. 1 has vac on it and 1 has out. Any ideas?
 

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Discussion Starter #3
Ok thank you. That's the way round I have it.

I'm still getting p2562 fault even after having turbo rebuild and new position sensor. When the fault occurs the the turbo position sensor is reading -67%.

So was wondering if the valve was working incorrectly.
 

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Discussion Starter #5
I've checked for leaks with engine off. I used a vacuum tester and it held vacuum so I don't think there is any leaks.

How would I check the levels?

I find it strange that the reading for the position sensor goes -67%.
 

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Discussion Starter #7 (Edited)
That's my thought Black mi16. So that why I'm wondering why when it faults it's at -67% for the turbo position sensor. Is it possible it's working the wrong way?

Does the new turbo position sensor need calibrating?
 

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I seem to be forgetting my own problems in the past...

P2562, turbo position repeat -72%...
http://www.peugeotforums.com/forums/122024-post49.html

Make sure the correct ports are connected to the valve, and make sure there is proper vacum at the vacum side of things. I sorted out that and things worked out.

However I changed the complete vacum actuator unit with new turbo position sensor also before the problems was fixed. The old actuator was not looking too good afaik.

http://www.peugeotforums.com/forums/130555-post62.html
 

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Discussion Starter #9
It's had a rebuild as was carbon up and sticking. Also had a new sensor and actuator .

Couple of concerns. The - reading when faults and also once it's faulted the exhaust sound changes. Sounds throaty if that makes sense almost like to during a regeneration of a modern vehicle. Now I've got a pre cat directly from turbo and then a box half way along the car and one at the rear. If any of these were blocked could it cause that fault?
 

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Ok, I think I maybe can remember a bit more from the time I was struggling with the same code.

If the vacum line, fresh air line and line to the actuator is mixed up, after a while there will be a "click" sound to the vacum solenoid, and from there on it seem like the ECU gives up trying to control the solenoid.

It might be after this occurs the reading turns to a negative value?

So really make sure to connect the pipes to the correct ports. There has been a design change between old and new solenoids I think, so if yo have changed it, I would recommend to double check the connection points to make absoloutely sure they're correct.

I guess you have made sure the actuator/vacum unit itself works properly? If you hook up the vacum directly to the actuator, does it move freely? It should be possible to see this if you just remove the rear breather hose from the rear of the cam cover.
 

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Discussion Starter #11
When turbo was off I check operation of actuator by hand and it moved freely. I will check the ports tomorrow. The out from the port goes to the actuator yes?
 

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You need to read the actual vacuum levels with a gauge being generated at the vac pipe from the vacuum pump as what happens is the vac can be fine at idle but drops off higher up the rev range.
 

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Also make sure the actuator moves the arm when it's added vacum to it. No use to check it moving by hand when turbo off car, other than to know that the actual turbo mechanism moves freely.
 

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Discussion Starter #17
I have not read them yet as need to get hold of a gauge. But I've borrowed a vacuum test kit tonight when I get home. I wondered if there was a simple test that could be done to check the valves. Can they be actuated via planet?
 

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concentrate on vac levels as this is no doubt where your issue is but you cannot really test the valves due to the way they operate they are not on off they vary with voltage applied so there is always some bleed off even with a good valve
 

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Discussion Starter #19
Carried out test via planet on the electro valves. The turbo one was clicking and the egr one was not. So swapped this with the old one I replaced for the turbo one and hey presto it has cured my problem. Very happy that it's sorted. Will get a new valve to be sure.
 

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407s dont have an egr solenoid the egr is electronic must be the doser valve solenoid the software may still call that egr though !

1 leaking valve affects all others as i have said in other threads

Some cars have 5 valves its a miracle they ever run right :)
 
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