The most common signs of bad mass air flow sensor (MAF) in Chevy Silverado 1500 are loss of power or slow acceleration, engine hesitation or jerking during acceleration, erratic idling, misfires, poor exhaust emission values and sometimes black smoke comes out of the tailpipe. The mass air flow sensor is part of the engine’s intake system and
Often, the solution for the code P0102 is to replace the mass air flow sensor if no other problems are found. A poor-quality part can also cause the code P0102. It's best to use an OEM sensor. The mass air flow sensor costs from $70 to $350. Replacing the sensor is easy. If the problem is fixed, the code P0102 will clear itself after driving.
Generally, this type of sensor is supposed to last as long as the car does, but this will usually not happen. Over the years, a lot of carbon will get built up on the mass airflow sensor and make it very hard for air to pass through as intended. This reduction in air flow will only lead to issues with the vehicle not working properly.
i have a few flat spots with my rev range, and i seem to be using my fuel quickly for a diesel. i had the same symptoms when i owned a Nissan S14, i changed the Air mass meter and problem solved, does anyone know where i can get a cheap but decent AMM and are they easy to change on the 320d?
Oil contamination in MAF connector or O2 sensor connectors. Also check ignition coils, cam and crank sensors, and oil sensor for leakage contributing to oil intrusion in wiring harness. Defective MAF (Mass Air Flow) sensor (especially on Mercedez-Benz and other European autos. There are a lot of problems with aftermarket MAF sensors.)
Here are some common symptoms of a bad or failing throttle position sensor to watch for: 1. Car won’t accelerate, lacks power when accelerating, or accelerates itself. It may feel as though the car simply doesn't accelerate as it should, and jerks or hesitates as it picks up speed. It may accelerate smoothly, but lack power.
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NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes. Dirty Air Filter. Dirty Mass Air Flow (MAF) Sensor. Intake air leaks. Faulty Mass Air Flow Sensor. Mass Air Flow Sensor harness is open or shorted. Mass Air Flow Sensor circuit poor electrical connection.

【Fitment】Replace Mass Air Flow Sensor Meter on your 2.5L 2.8L BMW 3 Series 5 Series Z3 Series BMW E36 E39 E46, Land Rover Freelander , Suzuki Verona & Volvo S40 V40,please carefully check and confirm the detail fitment below in the description The mass airflow sensor (commonly abbreviated to MAF) is one of the most important engine management sensors. A bad mass airflow sensor can leave your Volkswagen Beetle's engine running rough, or even inoperable. A MAF sensor measures the density of the air entering the intake manifold. It passes this information onto your Beetle's ECU. A bad mass airflow sensor can leave your Toyota Sequoia’s engine running rough, or even inoperable. A MAF sensor measures the density of the air entering the intake manifold. It passes this information onto your Sequoia’s ECU. The ECU uses this information along with other sensor data to control the amount of fuel that enters the combustion
New mass air flow and crank sensor and still stalls ,and putts if accelerating over 30mph. 2003 Chevrolet Impala 118,000 mi, Visitor. Stalling at idle. 2003 Chevrolet Impala 240,000 mi, Visitor. Won't start at times left alone for about 15-20 mins then it starts up. 2003 Chevrolet Impala 199,963 mi, Visitor.

Step 2: Replace or clean the MAF sensor. Now would also be a great time to change your air filter while the cover is out of the engine bay. The MAF sensor is held into the airbox cover by two tamper-proof T20 screws. Use the tamper-proof T20 bit socket to remove the screws, then pull the sensor out of the cover.

BMW Mass Air Sensor & Air Flow Meters. We sell OEM air mass sensors, air flow meters, and HFMs (Hot Film Meter) for many BMWs. When the mass air sensor is bad you will notice your engine running out of tune. Your fuel mileage will suffer, throttle response will be poor, and you will notice a lack of power. There should be a Check Engine Light - DIY for replacing & cleaning your mass air flow (MAF) sensor and how 'not' to clean your MAF & buying a replacement MAF cheaper than the BMW MAF (RangeRover MAF) (VW MAF) (Hyundai MAF) & MAF resistance testing 03/2003 and later E46 use the 6 pin MAF connector. The MS45 ECM gets the Intake Air temperature from the MAF, ergo the additional wiring and different connector, the earlier MS42-43 ECM uses a temp sensor in the intake manifold. Edit - extract page 10-11 Siemens Sensors for Engine Management v 2.0 05's will typically run 25-26 pounds of boost. The mass air flow doesn't really play a big part in boost, and I have yet to see a maf concern cause lack of power. First off, how many miles ago were fuel filters changed? If you feel that shifts points are different, you may be starving engine of fuel. This will also cause low boost. The mass airflow sensor (commonly abbreviated to MAF) is one of the most important engine management sensors. A bad mass airflow sensor can leave your Chevy Silverado's engine running rough, or even inoperable. A MAF sensor measures the density of the air entering the intake manifold. It passes this information onto your Silverado's ECU. Air charge sensor for E39, E46, Z3 Brand: ES#: 4475884 Mfg#: 13621432356 Qty: Availability: Back Ordered Mass Air Flow Sensor (MAF) 26 Tighten the fasteners that connect the air duct to the MAF sensor. Use HEX No.H5. Use a torque wrench. Tighten it to 5 Nm torque. 27 Treat the mass air flow sensor connector. Use dielectric grease. 28 Attach the mass air flow sensor connector. 29 Clean the air filter cover and housing. CLUB.AUTODOC.CO.UK 9–14 uji1.