28950 posts · Joined 2009. #10 · Jan 30, 2012. The SAP check valve is in your picture. The smaller silver colored hockey puck, mounted on the front side of the engine, and is connected to the end of the large black hose from the air pump. The silver device has a small vacuum hose connected to it. The most common signs of bad mass air flow sensor (MAF) in Toyota Camry 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 is P0100 Mass or Volume Air Flow "A" Circuit Malfunction; P0102 Mass or Volume Air Flow "A" Circuit Low Input; P0103 Mass or Volume Air Flow "A" Circuit High Input; P0104 Mass or Volume Air Flow "A" Circuit Intermittent; Photo of a MAF sensor: Symptoms. Symptoms of a P0101 code may include: Malfunction indicator lamp (MIL) illumination (a.k.a 4. Can a bad mass air flow sensor be the reason for misfires? If a MAF sensor starts failing, it will send inaccurate data to the vehicle’s computer, which may cause misfires. This can be a massive threat to safe driving. So replace or repair a faulty MAF sensor as soon as possible. Summing Up. Duramax mass air flow sensor problems are not The most common signs of bad mass air flow sensor (MAF) in Honda Civic 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 is Air charge sensor for E39, E46, Z3 Brand: ES#: 4475884 Mfg#: 13621432356 Qty: Availability: Back Ordered Mass Air Flow Sensor (MAF) 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. If the MAF doesn't fix it, and there aren't any faults stored for cam sensors or apparent voltage supply issues, I would take a look at the VANOS adjustment unit, especially if you have high miles and/or the symptoms happen mostly when the engine is cold. Good luck! .

e46 mass air flow sensor symptoms