Maf Sensor Wiring Diagram Audi A4 98 1 8

August 26 2016 in audi a4 audi a4 b5 1994 to 2001 by admin. Maf sensor circuit low. If the maf is bad either because it s not producing a signal or producing an erratic one the car s idle will return to normal and the car will seem to run fine.

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Maf sensor wiring diagram audi a4 98 1 8. Access our free mass air flow maf sensor repair guide for audi cars 1999 05 through autozone rewards. If the maf sensor has gone bad it ll trigger the check engine light and provide an obdii trouble code. Check wires between test box and 5 pin connector for open circuit. Edition 08 01 w42 usa 5504 01 21 wiring diagram.

The two most common trouble codes in relation to the maf sensor are. 9 1 2 bl. This is great because it helps you narrow down the problem. A4 bad maf sensor diagnosis.

Disconnect the 5 pin harness connector 1 at mass air flow maf sensor. The maf or mass air flow sensor is a main input to the ecm or engine computer form air intake temperature and flow. Diagram 1 starting and charging diagram 2 m3 2 motronic fuel injection system 1 6 and 1 8 models diagram 3 simos fuel injection system 1 6 models diagram 4 1 9 diesel direct injection system. Steering angle sensor signal horn activation steering column electronic systems control module or orange rs pink audi a4 no.

Audi a4 p0101 diagnosis. 1 2 wiring diagram. 2 1 standard equipment from 2002 m. Learn how this device is connected to the ecm and vehicle electronics in general.

The most common way to test the 5 wire vw mass air flow maf sensor is just to unplug it with the engine running. If cleaning the mass airflow sensor still does not work you can find a new oem sensor at https amzn to 2nfijzl this video shows the mass airflow sensor location on a 2000 2006 audi a4. Wiring diagram of maf sensor and plug to maf 02 06 2008 03 36 am 1 the short take im installing the apr s3 in an agu dbc with a large mafsensor then on awd aww awp etc but also the plug is only with 4 legs on my maf and the maf to use awd aww awp etc is with 5 legs need this very soon hope someone can help. Audi a4 b5 1995 1998 wiring diagrams.