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. What makes you think your problem is the MAF sensor? You tried cleaning it I assume? Save E e46CrispOne Discussion starter 2 posts · Joined 2012 #14 · Jan 25, 2013 Well I took it to a reputable german auto service place around town, (not a BMW dealer though), and he read my codes and it pointed to the MAF. The mass airflow sensor is used #mass_air_flow_sensor #MAF_sensor #MAFIn this video we will look at 8 symptoms that will tell mass flow sensor is going bad. Here is a video on how you can test your MAF Sensor using a basic $5 Multimeter. I also show you how you can figure out the wires without a wiring diagram. P BMW E46 MAF Mass Air Flow Sensor Replacement 325i 328i 330i 320i 316i 318i 330d 320d Foxwell NT201 Scanner: A Break In the Circuit. Your MAF sensor receives power and sends data to the ECU (engine control unit). A break or damage to the wiring harness can cause voltage loss. That, of course, causes your engine computer to log the P0102 code. Make sure to check the connector as well, since it can sometimes deteriorate to a point where pins no longer The problem is with the service engine light. Here are the OBD and BMW codes when I scan the engine. OBD (BMW) P0102 (8): Mass or Volume Air Flow Circuit Low Input. P0113 (14): Intake Air Temperature Sensor High. P0171 (202): System Too Lean Bank 1. P0174 (203): System Too Lean Bank 2. 5,660. My Cars. 2005 M3 & 2004 330i. Since you have a 323, I believe there is a Hyundai MAF you can use that's pretty cheap. It has the exact same Siemens part number. At least here in the states, it tends to be around $120-150 IIRC. 03-25-2014, 09:36 AM #6. MarcoZandrini. Member. lHjabmn.