Problems mass air flow sensor symptoms uk

MAF) sensor measures the volume of air entering the engine so the Engine Control Unit (ECU) can calculate how much gasoline the fuel injectors should deliver to each cylinder in order to create the proper fuel-air ratio. Sometimes, however, a malfunction in this little instrument can lead to big problems, usually resulting in very poor engine performance.The Air Flow Meter works by seeing how much current it takes to keep a wire at a specific temperature. However it is a sensitive instrument and it can be contaminated by oil (often used in after-market performance air filters), damaged by excess vibration caused by broken air boxes and we have seen problems with GTV litres being fitted with litre filters which leaves about an inch gap through which contamination gets in.This is a guide to finding, cleaning or changing the MAF sensor on your Opel \/ Vauxhall Vivaro, Renault Trafic or Nissan Primastar van. This sensor is often the cause of low power, an inability to rev properly and rough running.Inquiry: David Smith, courtesy UK Volvo Club] For the last six months it has been getting harder to start.

Up to now there has been no problem - has 170miles.

Diagnosing a MAF problem - Alfa Workshop

The faulty mass airflow sensor and how to fix the problem written by: nandy A vehicles MAF or mass airflow sensor, is the element that measures the density and flow of the air passing in to the combustion section.It assists the vehicles computer activate the air ratio to fuel.

Mass airflow sensor problems can cause a variety of symptoms from the annoying to the must repair. We'll discuss these in-depth on this page. MAF failure is dirt passing through the air filter. Cleaning the MAF can be a very simple, inexpensive fix to attempt.

Vauxhall Motors is a subsidiary of Opel AG and is only used for the UK market. To read our full Zafira review click here.

Bmw E60/EMass Air Flow sensor issue (MAF)

Mass airflow sensors (MAF) are often replaced when the only problem is a bad connector or the sensor wiring harness. The shop should check these items before replacing the sensor.

I have to make it clear that no guarantee or warranties are expressed or implie you follow this guide entirely at your own risk. If you, your car, or any 3rd party is damaged as a consequence of following this guide that is not my responsibility. The job of the Mass Air Flow sensor is to detect the volume, temperature and density of the air passing through it. This information is then relayed to the ecu so the fuel trims can be commanded to make the correct mixture for the exact volume of air beeing received.