VCDS and OBD diagnostic device in the On-Board Diagnostics Shop
Diesel, Engine Technology and Vehicle Technology. Repair, Maintenance and Diagnostics (OBD).

Air Mass Sensor: Find the Right One Now!

 
New Topic Reply 🔗 ⭐ 🖨 Dieselschrauber - Index » Diesel Engine Technology
Author Message
Cord
Schrauber
Schrauber


Joined: 08/01/2002
Posts: 37
Karma: +0 / -0   Thank you, like it!


Support

Post04-02-2003, 23:56    Subject: Air Mass Sensor: Find the Right One Now! Quote

Hi.
I need a mass airflow sensor.
It should have the following properties:
Signal voltage of approximately 0-5V.
Diameter of approximately 6 cm.
Reverse current detection would be a good feature.
Is there any mass airflow sensor that meets the requirements?
and if so, which one.


Translated on 11-10-2026, 19:32.
Back to top Profile PM
didl
Guest




 


Free account, no CAN development support

Post05-02-2003, 10:06    Subject: Air Mass Sensor: Find the Right One Now! Quote

What nice plans do you have?


Translated on 11-10-2026, 19:33.
Back to top
Cord
Schrauber
Schrauber


Joined: 08/01/2002
Posts: 37
Karma: +0 / -0   Thank you, like it!


Support

Post05-02-2003, 12:57    Subject: Air Mass Sensor: Find the Right One Now! Quote

It is supposed to replace the air mass meter.


Translated on 11-10-2026, 19:33.
Back to top Profile PM
Gremlin
Guest




 


Free account, no CAN development support

Post06-02-2003, 20:41    Subject: Air Mass Sensor: Find the Right One Now! Quote

Of course, things like that exist...

It's called HFM5, it's made by Bosch, and we all use it in our TDI cars.

The actual sensor is designed as a separate plug-in sensor and needs to be implanted into the intake manifold.

however:

'Without airflow, the voltage at the output is 1V. With reverse airflow, the voltage drops to near 0V. With forward airflow, the voltage increases to just below 5V.'

The output voltage that corresponds to a specific air mass depends on the pipe's cross-sectional area and the arrangement of the mass flow meter within it.

tried it out enthusiastically...

CU Gremlin.


Translated on 11-10-2026, 19:34.
Back to top
Cord
Schrauber
Schrauber


Joined: 08/01/2002
Posts: 37
Karma: +0 / -0   Thank you, like it!


Support

Post07-02-2003, 0:14    Subject: SEO: Best Practices for Website Optimization Quote

Then it's exactly the kind of thing I would like.
Do you have a pinout diagram for the HFM5?
And is the dowel pin always the same size?

Then I have another question about the pressure sensor in the pressure pipe.
What kind of signal does it output, and do you perhaps have a pinout diagram?


Translated on 11-10-2026, 19:36.
Back to top Profile PM
New Topic Reply 🔗 ⭐ 🖨 Dieselschrauber - Index » Diesel Engine Technology
Similar articles and topics
Topic Forum
No new posts Air Mass Sensor: Readings for Gasoline Engines General Tips
No new posts Air Mass Sensor: Expensive Weakness in VW/Audi TDI Technical Articles
No new posts 16488/P0104/000260 - Mass Air Flow Sensor Faults & Documentation (Audi, VW, Seat/Cupra, Skoda)
No new posts Air Mass Sensor: Buy Online & Save! On-Board Diagnostics (OBD)
No new posts Air Mass Sensor: The Story Behind It Diesel Engine Technology
No new posts Mass air flow sensor from eBay? Diesel Engine Technology
No new posts Air Mass Meter Audi 90 20v Diesel Engine Technology
Jump to:  
You cannot post new topics in this forum.