Mass air flow sensor problems symptoms uk

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.

Common SymptomsA failing mass airflow sensor can cause the Check Engine Light to come on and engine starting/running problems.If the mass airflow sensor (MAF) is not functioning correctly, the vehicle may lack power when accelerating or going up hills.

Diagnosing a MAF problem - Alfa Workshop

Mass Air Flow Meter Cleaner MAF 200ml £In stock.

MAF failure is dirt passing through the air filter. Cleaning the MAF can be a very simple, inexpensive fix to attempt. A vehicle with a faulty manifold absolute pressure (MAP) sensor will usually display symptoms of a rough running engine during acceleration, deceleration or at idle.The manifold absolute pressure (MAP) sensor is a common component on modern fuel injection engines that vaporize gasoline by pumping fuel into the engine under high pressure. Vauxhall Motors is a subsidiary of Opel AG and is only used for the UK market.

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How to Detect and Clean a Faulty Mass Airflow Sensor - CarsDirect

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.