P.407 Performance problem

2006 P.407 during the long trip of the vehicle, I gave the low level of performance I felt in the performance of the vehicle at the time. But after a while I realized that black smoke came out of the exhaust. I have a very good mechanic. The black smoke issue has been resolved but the performance issue is still unresolved. Trying to find the problem. What is your opinion about the reason.

Air flow meter can be checked & nbsp;

1. First check the air filter, replace if dirty.

2. Replace if the diesel filter has not changed for a long time.

3. Check the air flow meter, install and try a new one if possible.

If none of these results have been achieved, your fuel may be bad. Get good fuel from a place you trust, disconnect the battery terminal and wait half a minute, then plug it in. & Nbsp;

If not normal; < / b>

Reviews

1. Disassemble the injectors and have them checked on the test machine. If the test results are good, have it cleaned and maintained and refit the injectors. If the result is bad, replace the injectors repair kits, the cost is about 800 TL. If the injectors are bad enough to be repaired, you will need to replace the injectors, the cost is about 1600 TL.

2. The injectors were normal and reinserted only after maintenance, and if the situation is still the same, remove the turbocharger and send it to the turbocharger for maintenance. If the turbo can be repaired, have it repaired, if not, you need to replace the turbo.

3. If there is still no change in the situation, have the EGR valve and the intake manifold cleared as a last resort.

uikaratas 2012- 07-04 11:35:04

egr obstruction, malfunction of turbo solenoid valve, tight operation of the blades of your turbo may cause traction complaints ... look at your turbo ..

Thank you to those who posted for the problem I reported.

I also suspect that I am suspicious of the problem of poor performance that cannot be resolved anymore, and maybe one of the last parts that have not been looked at is the possibility of cracking in the intake manifold and also the pressure pad may be running out. - the intake pressure sensor (map) has changed but the vehicle has not changed yet the same
How to tell if there is a leak in this intake manifold?

To find this fault in my vehicle, as you say, many parts have been renewed. But its performance was very bad. & Nbsp; when the intake manifold is changed, it is obviously much better than it is now. & Nbsp; Cracking is not usually understood when I look at the defective part. However, the vehicle is leaking because it applies high pressure while working. That's why vehicle performance is getting very bad.

How much did you buy the intake manifold? How much did this manifold change cost?

My master said it was 400 TL. In order to find this fault in the vehicle, almost every part of the engine was looked at.

hello Friends you changed everything you wrote and the result including turbo again, traction is low