|
|
08-01-2012, 09:26 AM | #1 |
Second Lieutenant
13
Rep 280
Posts |
S54 MAF Code - Advice please??
Looks like no one on the Zpost forum could help me, maybe you guys can shed some light on what I need to do.... They sent me here.
07 Z4MC with 6K miles. Recently changed to euro headers, relocated o2s and egt, all seems fine. 100 miles later the SES light comes on, and I get code P1140 - MAF sensor out of range. Only code, O2s seem happy. When I unplug the Maf at idle, there is no change. The cheapo scanner I have doesn't give me freeze frame data. I have reset the light twice, but it keeps coming back. I cleaned with MAF cleaner - no change - except that the light did come on faster... Before I buy a fairly expensive sensor, anything else I can check? Cant find any vacuum leaks in the intake, everything seems to run just fine. Thanks for any help you can provide! James |
08-02-2012, 07:06 AM | #3 |
///M Fan
366
Rep 2,159
Posts
Drives: '09 E92 M3 IB/'17 f85 X5M LBB
Join Date: Sep 2008
Location: Canton, GA.
|
Take the MAF sensor out and clean it. They sell a MAF cleaner in a spray can. Just make sure that you don't touch the metal wire (that is the sensor) let it dry a little and install. Try that first. Do you have an oiled air filter? It usually happens if you put too much oil on your air filter. The sensor gets coated with the oil. If it doesn't fix it, you might have to get a new sensor. Hope this helps.
Eric
__________________
'09 E92 ///M3 Interlagos Blue,6MT,Silver Novillo Leather,CF Trim,Premium Package,Technology Package,Cold Weather Package,Premium Sound,19"Wheels,Moonroof-Toy/'17 X5M, Long Beach Blue, Executive Package,Technology Package, Lighting Package, Driver Assist, Full Mughello Red Interior, 21" wheels-Toy/'14 535i with M Sport and 19" wheels-Daily
|
Appreciate
0
|
08-02-2012, 08:22 AM | #4 | |
BimmerPost Supporting Vendor
307
Rep 13,093
Posts
Drives: BPMsport 2012 E92 M3
Join Date: Jun 2011
Location: Kansas
iTrader: (45)
Garage List 2013 Nissan GTR [0.00]
2019 Sierra Denali ... [0.00] 1999 Nissan Silvia [0.00] 1999 Nissan Skyline ... [0.00] 1998 Toyota Supra [0.00] |
Quote:
|
|
Appreciate
0
|
08-02-2012, 10:00 AM | #6 |
BimmerPost Supporting Vendor
307
Rep 13,093
Posts
Drives: BPMsport 2012 E92 M3
Join Date: Jun 2011
Location: Kansas
iTrader: (45)
Garage List 2013 Nissan GTR [0.00]
2019 Sierra Denali ... [0.00] 1999 Nissan Silvia [0.00] 1999 Nissan Skyline ... [0.00] 1998 Toyota Supra [0.00] |
|
Appreciate
0
|
08-02-2012, 10:44 AM | #8 |
Major General
1887
Rep 5,506
Posts |
MAF sensor is very delicate. If you knock it or get it dirty can kill the sensor... Try replacing the sensor and try it. I'm glad the M3 doesn't have a MAF sensor.
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|