I have a 1215 code - mass air flow sensor. Does anyone have a procedure to test this? I did do a search first.
1995 525iT M50
Thanks!!
Pat Washburn
Wausau, WI
1995 525iT
2008 audi A3 1.9tdi
(former 1991 520i LPG)
If you don't have a DMM (Digital Multimeter), get one. They're cheap and indispensible, even for the electrically challenged such as myself.
Dave
10/90 Build 525im, 630,000+km, Eibach/Sachs, Engine Rebuild
*RIP Oskar the DOG *
but I recently had the same code on my 1992 525i and I tested the MAF with this procedure, cleaned it with special MAF cleaner, cleaned the idle control valve, and finally failed emissions.
Turned out that my catalytic converter was bad. Luckily, the state of Arizona has a clean air program that paid for all but $150 for the new cat.
The code went away after I passed emissions.
Try getting some MAF cleaner and do the tests in the book. Hopefully you don't have to do what I did.
JD
Thanks for the test procedure. The wire cleaning burst is a quick and easy first check.
I put a new set of plugs in, and it's a fair but better. I really have my doubts about the MAF thing. Idles very rough, smooths at steady throttle. misses and chugs at partial throttle. Since replacing plugs, it misses at throttle tip in, then smooths out once power and revs build. Still chugs at idle. Wierd.
Pat Washburn
Wausau, WI
1995 525iT