Extreme soot formation!!

Hi everyone!!

I have a real problem. I have a 3 Golf TDI 90PS with a chip. However, I have no idea what kind of chip is in it. A sports air filter and a power exhaust are also installed.
The problem is, when I press the accelerator fully, it sputters and stutters. It's really annoying. I think it's probably the chip, because a friend of mine has the same problem. I'd like to hear your opinions on this.
Thank you in advance.

Hi

Your description makes me suspect serious engine damage if the rattling is not caused by a defect (e.g., a stuck AGR valve) - because, according to some forum experiences, tuning that pushes the rattling to the extreme can eventually lead to major engine damage.

If you're still feeling brave enough to try: what time would the 2000 - 4000 test work in the 3rd? What's up?

Hello,

You should investigate to see if the problem is caused by the chip simply injecting too much fuel in order to burn cleanly, or if there is a defect.
How many kilometers has your car done (due to fuel injectors)? Regarding possible causes of the fault, you could try checking the error database or using the search function here in the forum.

Hello, Rainer

[quote='ulf']Hi

.........because tuning to very high levels can, according to some forum experiences, eventually lead to major engine damage.

quote]


Where can I find the forum experiences? I would like to read up on it. So far, there has only been one post about a tuning plug that has tampered with a PD engine. But even that is not entirely clear.

o.T.

Well, the funny thing is, when I install the original air filter, the soot emissions decrease slightly. I don't think it's the injectors, since he had a 100,000 km service about 2 months ago. Currently, it has about 108,000 km on it. So, it's not really that bad yet. I'm going to try the following. The previous owner had a chip installed. I'm just going to install the original chip and then see if anything changes with the smoke!!

Well, it's possible, since the chip is already just inserted.

Thank you for the quick assistance.

... I've been rambling on and on about how K&N and BMC type filters aren't as effective as people claim.
I didn't come up with this out of thin air; it's based on experience.

Hello, Rainer

Hallo Reiner, ich bin auch nicht so überzeugt von Sportluftfiltern, aber hast du denn konkrete Beweise, dass die Luftfilter an verschiedenen Problemen schuld sind? Könnte es nicht auch andere Ursachen geben? I would be really interested.

... I've been rambling on and on about how K&N, BMC, and other similar air filters aren't actually that effective.
I didn't come up with this out of thin air; it's based on experience.

Hello, Rainer


erfahrungswerte// ?? Testumgebung oder Popometer?? Können Sie bitte konkreter werden? Es kann ja sein, dass ein Luftfilter in einem Serienfahrzeug keinen Nutzen hat, aber ob das bei einem modifizierten Fahrzeug mit erhöhtem Luftbedarf auch genauso neutral ist ??

So, ich habe meinen sauberen und leicht geölten BMC-Filter komplett mit einem neuen Papier-Luftfilter verglichen.
Popometer favored paper filters, with the highest speed being almost identical for both.
Back then, I promised to follow up with the LMM value measurements, but due to time constraints and a lack of a laptop, I haven't been able to do so yet. However, a laptop has now been ordered, which should arrive in the next few days.
I was unable to identify any specific problems caused by the fabric filter, and I also didn't observe any particular advantages.
I removed my fabric filter for the following reasons:
- During trips in heavy rain, water mist enters the air filter housing of my A3, which has completely washed out the fabric filter (all the dirt in the engine). With the paper filter, I only had a coffee filter - effect. Better air filtration is clearly achieved through the paper filter.
- Cleaning with oil-soaked rags is time-consuming, using paper towels is not expensive, and my fingers are verschandeln again in less than 2 days.
- no competitive advantage

Hello, Rainer

Okay Rainer, das sind schon überzeugende Argumente. Bei meinem PD mit Chip, der Lader spricht früher an und die letzten 20 km/h bis zur Höchstgeschwindigkeit werden besser. Dafür ist der serienmäßige Filter in anderen Drehzahlbereichen besser. I am now seriously considering removing the sports filter from the cabinet.

Hallo Switch, I have a PD with a chip, and the sports air filter combined with the power exhaust pipe also doesn't work for me. Although I don't have a soot problem, the power delivery is worse, with less torque, than with the air filter or power exhaust pipe alone. I think I will stick to using the power exhaust pipe and the stock air filter in the future. This will make my engine a bit more responsive, and between 150 and 195 km/h, the acceleration in 6th gear is good. Better with power pipe than without.