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! BMW Master Technician and Chevy driver. S.
The powertrain control module (PCM) uses that reading along with other sensor parameters to ensure proper fuel delivery at any given time for optimum power and fuel efficiency. Basically this P0101 diagnostic trouble code (DTC) means that there is a problem with the Mass Air Flow (MAF) sensor or circuit. The PCM detects that the actual MAF
- P1397 cam shaft position sensor. - P0101 mass or volume air flow circuit range performance problem. I replaced the exhaust side cam position sensor and cleared the codesno new codes have appeared. The reason for suspeting a bad MAF is that I got a P0101, and when I disconnect the MAF, my 0-60 time decreases by 2 secs.

3, 4, & 5 wire mass air flow sensor wiring diagramSensor wiring maf bosch wiringall f250 chevy Mass air flow sensor wiring diagramMaf iat airflow imageservice. Mass Air Flow Sensor Wiring Diagram - exatin.info. Check Details.

jfoj · #14 · Apr 12, 2020. Most people that clean the MAF on an E46 and claim it helped probably had a different problem like loose wiring or leaking plumbing. The only thing MAF cleaning can typical remove is hydrocarbon build up of oil vapors and the E46 does not have oil vapors that typically get anywhere near the MAF.
E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. Content on E46 Fanatics Forum is generated by its users. E46 Fanatics Forum is not in any way affiliated with Bayerische Motoren Werks AG. Hi! My local mechanic claims that my car a 320 CI, or in general any car with a hot film air mass sensor
I am wondering if the MAF sensor would cause the transmission light to come on. My car is a 2004 n42 engine. Would low trans oil level throw these codes. I'm very confused. Any help would be greatly appreciated. Thanks 2854 -variable valve gear plausibility sensor 2852-variable valve gear reference sensor 2753-hot film air mass sensor flow BW Part #: 13627566983. Brand: Continental VDO. (In Stock) Description. Customer Reviews. OEM replacement HFM for 2004+ E46 330i, E83 X3 3.0, and E85 Z4 3.0. Also fits the 2004-2005 E46 325i with M56 SULEV engine. The airflow sensor or HFM (Hot Film Meter) is hugely important in the performance and fuel economy of the engine. The fault is caused when the amount of torque required/requested is mismatched with what can be produced. It is usually caused by an engine issue (programming, wiring, bad MAF sensor, throttle issue, etc). This can be a hard problem to chase down without other codes as well (such as a MAF code, etc. '84 533i sold 5spd. CGU5ZO.
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