'93 525 MAF mass air flow sensor code 1215 - BMW Forum - BimmerWerkz.com
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#1 (permalink) Old 05-08-2011, 08:08 AM
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'93 525 MAF mass air flow sensor code 1215

Just wanted to post this for the record since sometimes I don't see follow ups to questions. My car started to have idle issues and would randomly stall. During higher speeds, it would cut off and come back on jerking the car. I did get a check engine light intermittently. I found the code by doing the stomp test and it came up as 1215 which is the mas air flow sensor. I did a little research and found a few different things people tried instead of replacing the MAF since it is so expensive. Unfortunately I didn't find many conclusions to posted issues. One thing I found that was beneficial is that you can drive the car with the MAF disconnected sacrificing some gas mileage and performance. This was fine as I needed a few days to fix the problem and needed the car. I took the MAF out and cleaned it, however, it looked really clean anyway. This did not solve the issue and since I have 251k on the car, I figured it was time. After the initial shock of how expensive these are, I decided to check ebay. I found one for $75 shipped from a junkyard. I live in the boonies and no one around here has BMWs in the junkyards. The interesting thing was that I put the new one in and it did not seem like it fixed the problem. So I decided to rev the engine a little but and still ran lousy, however, the check engine light did not come on. I was about to give up after a few minutes of reving it and then the idle began to smooth out. I took it for a drive and it really ran rough for a minute or two and then it also smoothed out. Now my problem is solved and the car works great again. I guess maybe the computer needed to adjust itself after running a few days with it disconnected. I hope this post can be beneficial to someone in the future.

'93 BMW 525 240k
'93 Suburban 100k
'93 Chevy Astro 250k
'79 Porsche 928 85k
'00 Ford F250 V10 135k
'95 Ford F150 4X4
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#2 (permalink) Old 05-08-2011, 10:20 AM
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Thanks Rupesy... Could have been crap fuel or even crap IN the fuel !!!
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#3 (permalink) Old 05-09-2011, 01:58 AM
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Thanks,, hey what is the stomp method?? for getting codes?
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