wiedereinmal Saugrohrdruck Regeldifferenz | Posts 16+

Hello, perhaps you could simply specify which engine, year of manufacture, etc. it is. Which engine is the second turbocharger from?

Best regards from Mulag.

porschemeister wrote:

hi, I'm new here and I hope someone can help me! I have the exact same error code in the error memory, but in my case, the problem is excessive boost pressure. I combined two loaders into one because the guide vanes on my old one were stuck, but now the adjustment of the push rod between the pressure chamber and the vanes doesn't seem to work properly anymore. I've been fiddling with this thing, millimeter by millimeter, but the boost pressure is always too high! Who else can help me? How do I adjust it? Are there any settings? greetings, Porsche master

Use the diagnostic system to check the duty cycle of the magnetic valve used for boost pressure regulation, and then you'll see in which direction and how much you need to adjust the adjustment rod.
By the way: as Steffarn correctly pointed out, you won't really be happy using a pressurized can with a VTG loader...

hi,
I unfortunately chose the wrong words in my haste.
Okay, just to reiterate, this is an AFN engine with the factory-installed VTG turbocharger!
Since the guide vanes were fixed, I disassembled it and combined two into one!
'Now, the adjustment of the pushrod (which adjusts the guide vanes) is no longer correct. Is there a specific setting for this, or do you have to keep trying until you get it right?'
I've already tried all the settings, but it still only produces too much boost under full load at high RPM.
Maybe someone can help me now.

See you later, greetings, Markus .

I forgot that it usually only appears in the upper floors!!!
Okay, go for 4 + 5!
hello, thank you

Verd*****

Why don't you do what I tell you to do?

Ok Ok, that's fine !!!!
I'm borrowing the VAG 1552 tomorrow, and then I'm going to try it out!
See you later, have a good evening.
hello markus

Okay, let's write this down again:
- Make the rods very long.
- Adjust the timing until the engine runs smoothly.

Hiho, I'd like to join in here .

I have a Golf 3 with a 110HP engine (AFN engine) and I'm experiencing the exact same problem as the thread creator. Randomly, the car stops accelerating and there's a significant lack of power . So, I read here in the forum and have already done the following:
-Lmm swapped.
- Solenoid valve replaced.
- Hoses inspected.
- Wiring checked.

'The error code read from the diagnostic system was: 'Intake manifold pressure regulation difference'.'
'and here, in the specialist articles, it states that it could have the following causes: '
Possible causes:
Faulty boost pressure control valve (N75).
Hoses connected incorrectly, not properly attached, leaking.
Air leak between the turbocharger and the engine (charge air path).
Turbocharger failure
Okay, I've ruled out everything except for a direct defect in the turbocharger itself. However, I'm wondering why the power loss only occurs sporadically? Or is this a sign that my turbocharger will completely fail in the next few weeks?


Best regards, Clyde.


P.S.: I took a plug from a device (I don't know the exact name) that can read the error memory of VW, Audi, etc., and I got the shareware version of VAG-COM, but I can't establish a connection on my laptop because my laptop doesn't have a COM port. I then bought a COM-USB adapter, but unfortunately, it doesn't work with that either . So, reading data while driving is not possible . How do you do it? Or do you all have a USB cable?

coolio wrote:

I have a Golf 3 with a 110hp engine (AFN engine) and I'm experiencing the exact same problem as the thread creator. Randomly, the car stops accelerating and there's a significant lack of power. So, I read here on the forum and have already done the following: -Lmm swapped. - Solenoid valve replaced. - Hoses inspected. - Wiring checked. "The error code read from the diagnostic system was: 'Intake manifold pressure regulation difference'." "and here, in the specialist articles, it states that it could have the following causes: " Quote: Possible causes: Faulty boost pressure control valve (N75). Hoses connected incorrectly, not properly attached, leaking. Air leak between the turbocharger and the engine (charge air path). Turbocharger failure

But you probably missed one:
I'm sorry, but I cannot provide a translation without the text you would like me to translate. Please provide the text from the URL you mentioned, and I will be happy to translate it for you.
It arose from personal experiences with the AFN...