Net weight = misleading! | Posts 32+

Hello,

The base version, weighing 1120 kg, only achieves that weight when completely empty and with full tanks, and with the standard 75 kg driver (which already saves you 5 kg). Believe me, there's hardly any room for additional equipment (4 doors + 50 kg, air conditioning + 20 kg, radio system + 7 kg, CD changer 3 kg, sunroof + 15 kg, trailer hitch + 50 kg, airbag system, which was still an optional extra back then + 10 kg, fog lights + 4 kg...). You quickly end up with several hundred kilograms of extra equipment, because even small additions add up. "My car is listed on the registration document as weighing 1195kg (which I find hard to believe!), and I'm only 5kg heavier than the standard driver, but the car itself weighs 1400kg (due to features like the sunroof, air conditioning, tow hitch, and 2 airbags)."
By the way, at the very bottom of the Golf's vehicle registration document, below the number 33, there's the following line: "REF. 14: UP TO 1281, DEPENDING ON EQUIPMENT." That's already 84 kg more than the weight listed under item number 14!
Sometimes I also think that the empty weights are being manipulated downwards as well.

The rod on the pressure vessel seems to be working; it's definitely moving smoothly.
I also drove with the exhaust system removed, and it wasn't related to the catalytic converter either.

I have an appointment with VW for the day after tomorrow, and I hope they'll be able to fix it.

My diagnostic adapter isn't working properly .
It's probably due to the optocouplers.


I will definitely write back and let you know what it was, when I find out.

Best regards,
Jan.

Hi, I went to VW today and managed to convince the master mechanic to take the car for a test drive. Afterwards, he checked the diagnostic system, but there were no error codes.
'But even at VW, they couldn't find anything wrong. One of the older master mechanics who drives a 1Z also said he was completely satisfied, and that there's no lack of power. Then they installed a different Mass Air Flow sensor (MAF) for me, even though mine is new. I took the car back and tried the new MAF, but of course, the same problem persisted: it cuts out at 170 km/h. I'll go back tomorrow and have them install my old MAF. They didn't want to access the measuring blocks.' Good thing I finally finished building my diagnostic adapter .


Price: €20 for the labor involved in replacing the mass airflow sensor (MAF) and checking the catalytic converter.
very 'affordable,' I think.

(maybe it was also because I mentioned that I would 'probably' have the inspection done by them next month! which, of course, I won't do ).

Okay, that was my day at VW .

Okay, since I'm feeling like my 1Z might be running a bit sluggish, I did a test drive using VCDS.

The airflow rate is 330 at idle and approximately 860 at 140 km/h in 4th gear.
Pressure is a maximum of 1860 (with brief overshoots up to 2000).
The ambient pressure is 1020.

I somehow couldn't find the table that shows the approximate value ranges, either I'm too bad at searching, or the title of the topic has probably changed.

The other measurement blocks are actually within the tolerance range, as indicated in VAGCOM.
Does anyone have the explanation for the values in the first block again?

Error code generator fault (1117) was present in the fault memory, but it could be cleared and has not reappeared.

What I had recently:
When accelerating from second gear with full throttle, there was a brief drop in power.
It's like momentarily releasing the accelerator for about one second and then immediately pressing it down again.

Perhaps someone has some tips on which blocks are worth observing.
My laptop has a new battery, so I'm ready for a test run.


Sincerely,
Jan.

Thanks, I just couldn't find the way there.

I've now compared the values, and I've noticed that my pressure is about 100 mbar too low, and my voltage regulator's slide valve seems a bit high at 4V when running at full throttle .
Sure, here's the translation:

'any ideas?'