AFN Timing Belt & Chip Replacement

Hello everyone!

I have an A4 TDI (AFN) with approximately 225,000 kilometers on the odometer.
Die Maschine läuft einwandfrei und problemlos. However, it is...
This is already the second engine - the first one had its timing belt replaced at 55,000 km.
They were fired and Audi had to dig deep into their pockets.

The next time I get my car serviced, it will have reached 90,000 km again, so it's time for a...
Timing belt replacement. That's also why I'm asking:

Das Auto hat seit ca. 60.000 km einen Chip von ******** drin. Since then.
It makes it much more enjoyable. Otherwise, I can't find any negative aspects.
Please provide the reports. If I now adjust the injection start time after installing the new belt, is there anything special I need to consider?

The chip certainly ensures an advance in the injection timing.
point. Or is that irrelevant when the system is idle?

Should I, or is it necessary to, re-insert the original chip before taking measurements?

VAG-Com device and adapter available.

Thank you for your expertise...


ThomasG

Hi,
I also have a chip from ******** installed. I asked them the same question, and ******** said, 'When changing the timing belt or making adjustments to the pump, always use the original chips.'

tim27 wrote:

Hi, I also have a chip from ******** installed, and I asked them this question as well. ******** said, "When changing the timing belt or making adjustments to the pump, always use the original chips

."

That says a lot about the 'chip'. Either it's a disguised, low-quality tuning modification, or the default settings mode is no longer working.

In both cases, it's junk. Selling a 10-cent modification as a chip is bordering on fraud.

Whether you use a diagnostic tool or a multimeter to set the injection start timing is irrelevant. You don't need to modify anything on the engine control unit, disable any modules, or remove any cheap aftermarket parts to adjust it!

ThomasG wrote:

The chip certainly ensures an advance in the injection timing. point. Or is that irrelevant when idling?

Uninteresting. Using a diagnostic device, it is configured in the basic settings mode. What this means is explained in the technical article on adjusting the VW 1.9l TDI distributor injection pump.