Important safety note
The following technical information and practical tips have been compiled by HELLA in order to provide professional support to vehicle workshops in their day-to-day work. The information provided on this website is intended for suitably qualified personnel only.
1.
2.
3.
4.
Important safety note
The following technical information and practical tips have been compiled by HELLA in order to provide professional support to vehicle workshops in their day-to-day work. The information provided on this website is intended for suitably qualified personnel only.
5.
1
2
3
6.
7.
8.
9.
How helpful is this article for you?
Not helpful at all
Very helpful
5
4
3
2
1
Success
Sign up for our free HELLA TECH WORLD newsletter to receive the latest technical videos, car repair advice, training course information, marketing campaign details and diagnostic tips.
Success
Success
Success
Success
Success
Success
Success
Success
Error
Error
Please tell us what you did not like.
Success
Thank you for your feedback!
Wrong Captcha
Wrong Captcha
Error
Something went wrong
![](/techworld/assetsfs/images/01_sensor_im_fahrzeug_customresolution.jpg)
Basic Knowledge
Checking the exhaust gas temperature sensor
Step-by-step instructions for testing the exhaust gas temperature sensor - shown on the VW Passat 2.0 TDI.
Reading time: 3 minutes
Basic Knowledge
Injection nozzle/injection valve – Function & checks
Find out how to diagnose a defective fuel injector and replace it in the workshop.
Reading time: 6 minutes
Basic Knowledge
TPS sensor – function & troubleshooting
Learn how to check a throttle potentiometer for defects and recognize the most common symptoms.
Reading time: 2 minutes
Basic Knowledge
Throttle valve switch – function & troubleshooting
Everything you need to know to diagnose and repair the throttle valve switch - helpful workshop tips.
Reading time: 2 minutes
Basic Knowledge
Accelerator pedal sensor – function & design
Important tips for checking the accelerator pedal sensor and rectifying defects - practical knowledge for your workshop.
Reading time: 3 minutes
Basic Knowledge
Camshaft position sensor - function & troubleshooting
Learn all about the function and testing of the camshaft sensor and possible symptoms of a defect.
Reading time: 2 minutes
Basic Knowledge
Air-mass sensor - Function & troubleshooting
Learn how to check a mass air flow sensor, detect defective sensors and replace them professionally.
Reading time: 2 minutes
Basic Knowledge
Car knock sensor - function & troubleshooting
Find out how to check the knock sensor for malfunctions and rectify possible fault symptoms.
Reading time: 2 minutes
Basic Knowledge
Check and change ABS and wheel speed sensors
Instructions for diagnosing and replacing the ABS sensor - all the steps for a professional repair.
Reading time: 10 minutes
Basic Knowledge
Transmission range sensor circuit – troubleshooting
Everything you need to know about diagnosing transmission sensors - from troubleshooting to repairs in your garage.
Reading time: 2 minutes