Cold weather, engine runing rough

[Le_Combattant]

I'm might be a boomer since the begening I never trust so much Aliexpress.
But China seems very in advance in terme of copying.

Maybe I should give them a try ?
Do you think they are true device with no brand on them ?

China has long been technologically ahead of many other places... I'll stop talking here so no one gets offended.
China has long been selling all kinds of quality.
In China they are now able to surpass the best quality of any product.
There are copies that are better than the originals. 'MUCH better'.

What is authentic? This now depends on how you interpret it.
If an electric Audi (80.000 - 100.000) has the best batteries in the world, MADE in China, is this Audi a s**t copy?

Urban legends continue because everyone wants to buy cheap or free, and China does not oppose this bad habit...

Copying in China is like a religious or spiritual act for them.

I saw that there is a price difference between your screenshot and mine
The price at my case is 107euros, but at your photo is less, 97euros. Why is this happening ?

Shipping cost... you have to improve the habit of comparing appropriately.

Well, I think I will give them a try.

According to them, it's compatible WIN10 and 11. Goods, since my laptop for car's maintenance is currently running on WIN 11.

Let's say I take the product in question. Will ODIS will give me the right information concerning the software I have to download and flash to my ECU ?

I'm a little bit scared because I never do this kind of thing^^

[ciclo]

Well, from your endless questions , it seems like I'm trying to convince you to buy something you're not sure about, and I'm really just politely informing you. I don't want to continue giving free advertising to Aliexpress.

China-Aliexpress and I are only united by cordial relations as a customer, just like any other customer, nothing more. I have some good friends in China, like in many other places of the world, but for other reasons.
To be clear, I'm not for, or against, anything or any thought in the whole width of this great universe.

Magic does not exist without knowledge, and If you're not sure after the info already received, and you don't want 'to risk' what many others have already been doing for a long time, pay those 150 euros at the official dealer. Easy and without these complications.

I hope you kindly understand what I meant. Thank you so much!

[Le_Combattant]

Well, from your endless questions , it seems like I'm trying to convince you to buy something you're not sure about, and I'm really just politely informing you. I don't want to continue giving free advertising to Aliexpress.

China-Aliexpress and I are only united by cordial relations as a customer, just like any other customer, nothing more. I have some good friends in China, like in many other places of the world, but for other reasons.
To be clear, I'm not for, or against, anything or any thought in the whole width of this great universe.

Magic does not exist without knowledge, and If you're not sure after the info already received, and you don't want 'to risk' what many others have already been doing for a long time, pay those 150 euros at the official dealer. Easy and without these complications.

I hope you kindly understand what I meant. Thank you so much!

There is no doubt that China can produce quality items.
I mean, in the electronic/informatic, they are in the top one.

My only fear is a mistake from my part that can result in car immobilized because I miss something.

On internet and some forum there is some report that the flashing of ECU didn't go well. Of course, there is always a solution.
But it can be time or money: or both.

Concerning your skills, no doubt, you are an excellent guy making nice mods for your car.
But I don't have your level/knowledge in case of failure of flashing my ECU.

[ciclo]

With the 'right tool' installed correctly and the 'correct flash file' everything will work fine with just three or four mouse clicks.

Ask me what to do right when you do it, ...in case you do it. Very easy.

[RUM4MO]

Just a comment or fact concerning buying what is parts manufactured by a company that supplies the VW Group factories, I started buying parts to make up a complete kit of parts to replace all the front suspension arms/links on my 2011 Audi S4, everything was branded as being Lemforder, front lower front arms = made in China, from another supplier front lower rear arms = made in China, from the first supplier front upper front arms = made in Germany, from the first supplier front upper rear arms = made in Germany, from another supplier ARB drop links = made in Germany, from another supplier lower ball joints = made in Malaysia.

All Lemforder items manufactured globally as you might expect, all having the "VW Audi" identity ground off them - which is always the way things are done to avoid clashing with VW Group.

[Le_Combattant]

So small update,

I have a meet the 17th of January, so in just few days to update the ECU by VW.
I'll get back to you when it's done.

[Tinman]

Hi, I would like to update my engine ecu firmware (CHZC engine). I have the vcni red 6154a tool, brought it for CP removal of mib2. Can this tool use for flashing the engine ecu or do I need to buy the 6154a tool mention in previous post? Do I need GEKO online account like ODIS-S when using ODIS-E for flashing? Also when flashing when i connect the main power supply is sufficient to connect the live to the battery and the negative to a ground point like the bolt on top of the engine mount next to the coolant tank? Thank for any help in advance.

[ciclo]

RED VNCI 6154A and VAS 6154A are the same tool.

With ODIS E you can flash your ECU offline as long as you have the correct update file and the ODIS version you use contains the PostSetup for your ECU. ODIS E will not let you flash if this is not the case. OFFline means you don't need a GEKO account to connect ONline.

You should always make sure that during the flashing process you have a Voltage above 12V, during the flashing ODIS E will warn you about this in case the voltage drops below 12V.
Disconnecting all possible consumers during the flashing and using an additional power supply to the battery is the correct thing to do, with experience it is not crucial if the battery is in good condition and you know that the process for the unit to be flashed is going to be fast (_<5min).
The negative of the power supply can be connected wherever you consider appropriate, no special magic is necessary here, just a good earth point.

ODIS E and ODIS S are different programs. You can flash with both but it is faster with ODIS E.

[Le_Combattant]

Hello everyone,

Today was D-Day for the Polo.
Appointment this morning at 8am to update the engine ECU to the latest version available.

A very warm welcome from this dealership, light years ahead of my usual dealership.
Warm, attentive and friendly.

The hour's drive in thick fog (visibility less than 20m) and on an icy road was well worth it.

1h30 later, the car was returned to me with the following version:

9314

In the VCDS scan, there were a few errors due to a loss of connection between the car's various modules, but nothing surprising or alarming.
I erase everything and set off for my hour's drive through the countryside, which still wears its veil of frost:

PXL_20250117_091446729 (1).jpg (2.69 MiB) Viewed 8202 times

Arriving home, a final full scan: CLEAR except...one small point concerning the lambda:

PXL_20250117_100759110.jpg (4.22 MiB) Viewed 8202 times

Impossible to pass the tests and/or adapt the lambda, the car refuses because of this defect.
So far, I've come to no conclusions.


The car behaved as usual.
The engine was still warm when it left the dealership after the overhaul, so I wasn't able to experience the symptoms I often describe.

However, on initial start-up this morning (-3°), these were significant and chaotic.
It felt like the engine was suffocating and fighting against something.

Translated with DeepL.com (free version)

[ciclo]

Did they give you an invoice? If that's not a problem, could you please tell us how much they charged you?

[Le_Combattant]

Did they give you an invoice? If that's not a problem, could you please tell us how much they charged you?

Yeah no problem, they ask me 150 euros. No more.

[ciclo]

As I already mentioned, in my opinion they shouldn't have charged you since your engine is included in the TPI. I'm not blaming anyone for anything, I'm just expressing my opinion.

It would be appreciated if you could report your observations on the operation of the engine with this new update, I suppose it may be useful for those who are in the same conditions.
Hopefully everything will work as it should from now on.

[Le_Combattant]

As I already mentioned, in my opinion they shouldn't have charged you since your engine is included in the TPI. I'm not blaming anyone for anything, I'm just expressing my opinion.

It would be appreciated if you could report your observations on the operation of the engine with this new update, I suppose it may be useful for those who are in the same conditions.
Hopefully everything will work as it should from now on.

It's your opinion but I accept it and, to be honest I'm quite on your side.
But I prefer the 150 euros from this dealer than the 320 euros requested by the other dealer

Engine was operating normaly as it was still warm after 1h-1h30 in the shop.
So nothing to report in term of feeling.

Just the "Lambda warmup fail/incomplet" on the VCDS.
The true test will be tomorrow when the engine will be dead cold (-3°C).

[ciclo]

I can recall very few times that engines I've owned passed the VCDS test when readings were taken, they usually pass the test under ideal operating temperatures (0000 0000). I've never had to worry about this.

I also updated the ECU on my 6R to the updated version, but that's because I'm a capricious person, everything worked fine before and after.
Then the ECU reprogramming, which is one of the great improvements in my 6R, is very noticeable in these small engines/cars, the acceleration is spectacular. Very happy for many kms/years now, from 90 turtles to 125 roadrunners... beep beep!

[Le_Combattant]

So small update, temp was higher than expected (2°C).

I had the feeling the issue was still here but to confirm temp need to be lower.

Btw, after 1h of highway, all engine passed.
02 sensor heating too also.