[Solved] Sprinter 906 ohm 651 no power - Sprinter 906 ohm 651 no power.

Hello. I have a problem with the lack of power in the car. A mechanic in an unauthorized service, after connecting to Star Diagnose, stated that the probable cause of the lack of power is a broken intake manifold. (unfortunately they did not check it) A question to my dear colleagues, is there any way to check the tightness of the collector before its removal? I would like to avoid unnecessary replacement.

Thank you in advance for the answer.

Added after 32 [minutes]:

I will add that in the absence of power, there was no error saved.

Please, buddy, try it.
Start the car, take the cake and spray on the manifold, if the revs increase, the leak has been detected.
Try to detach the air flow meter and see if it has more power.

Thanks for doing this poster. I will try this method, although it is difficult to access the collector. I unplugged the flow meter and then it was even worse with this power

And you have nowhere to hook up from a friend from the same car?
Because I had such a case of zero errors and little power BMW 3.0D but replacing the flow resolved the matter.

I have this method: I put a pipe section on the intercooler stub with an ordinary valve from the wheel installed and thus give a pressure of approx. 1.5 bar. When it is quiet, you can elegantly hear how the air escapes through the collector crack. The complementary tool is a piece of tubing (brake hose) with a piece of rubber tubing over it. This mimics a stethoscope and is great for accurately locating the lesion. Finally, I note that collector failures in this engine occur much, much more often than flowmeter failures.

Thanks for the tip Gerri. "Piece of tube with a valve" - I can't imagine it. After all, the end of the IC with a diameter of about 50 mm, how to mount a wheel valve on such a diameter?
Do you supply air directly from the compressor and measure 1.5 bar on the pressure gauge?

Added after 11 [minutes]:

Could you send a photo of such a tube with a valve?
Regarding the flow meter, I just changed it from my brother-in-law in the car and there is still no power.

The rubber pipe is a "recovery" from the old turbo pipe that is in this place. And it is basically there, but in the Sprinter 906 with the previous engine 646. The diameter is similar. An aluminum disc with this diameter "approx. 50 mm." Is inserted at one end. and clamped with a u-bolt, a valve is seated in the disc. Assembly method for personal invention. I suspect that such a valve with a screw (a valve from a truck rim works well - because it has a mounting nut) can even be mounted on the wall of a rubber pipe - then the aluminum disc will only be a plug. I supply the air directly from the network by regulating the pressure with the lever of the tire inflation gun. The set pressure is maintained by a tie "tied". I know - total amateur (but makeshifters last the longest) and at this point I warn you not to exceed the pressure too much because you can damage something. Maybe it would be a good idea to use an inflated wheel as a source of pressure? I made the equipment years ago when intercoolers fell en masse. Now it is useful for diagnosing mass collectors
Initially, I was concerned that the pressure would escape through the engine, but it turned out that everything was working properly.

Thank you for the detailed description. Tomorrow I'll make myself such a device.
I've been riding this problem for a long time. Yesterday I had a drive with a connected computer (my brother-in-law's computer, he uses it for air conditioning errors) and it was clear that the compressors pump up to 3 bars. Taking into account that the boost pressure sensor is located behind the IC and there it reads 3 bars, the peasant mind "loses" the pressure behind the sensor and there is only the collector. This is how I explain the validity of the thesis about the broken collector. Please take me out of my mistake if I am wrong.

hello if the concealer o often you find a trace of oil Umnie was slightly cracked, I bought a new one and after 100 km again a check and a loss of power, it turned out a loose pin on the exhaust corrector after tightening it is ok. At my cousin it turned out to be a pipe on the corrector and he lost the pressure, it was enough to replace it, in other words, as it is somewhere on the pipes wet, you have to start with that. When dry, I would be inclined to use a concealer because it's hard to see something on it and a minimal crack is enough.

Hello. The problem was the driver software. After uploading the new problem, the problem is over.