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VW:GOLF:GF-6XAUA:AUA:始動30sec位でエンジンの振れ大、吹けが悪く:#2misfire:失火::comp:ck:
http://www.haspa.or.jp/members2/topics/troublechute/19/sevn2007_0121465248image2.jpg
[20150430]
MAS:GOLF5:KEY:
http://blog.livedoor.jp/makoto_a_s-.com/archives/51747553.html
[20150501]
P0102:MAF:P0113:THW:
16486:P0102:Mass Air Flow sensor (G70) ,Signal Low
16497:P0113:Intake Air Temp.,sensor (G42), signal Hight
江の島に 石工 という地名あり
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コメント（9）
ゴルフ・平成１４年式 ＧＦ－６ＸＡＵＡ・ＡＵＡ
エンジン始動後、３０秒位でエンジンの振れが大きくなり、吹けが悪くなる故障。
http://www.haspa.or.jp/members2/topics/troublechute/19/main019.html#_12
2012/9/9(日) 午後 5:15
(1) コネクタ（A）の②と④端子間の電圧が5Vであったので、コネクタ(A)の②と④端子からセンサ側が断線している。
(2) コネクタ(A)を外し,②と④端子間を短絡すると水温データは「140℃」の表示になったので,②と④端子からECU側は正常である。
(3) コネクタ(A)を外したとき,コネクタ(B)の⑤と⑦端子間の電圧が5Vあったので,ECU側は正常である。
(4) コネクタ(A)の②と④端子間の電圧がOVであったので,コネクタ(A)の②と④端子からセンサ側が断線している。
http://www.jidoshaseibishi.com/commentary/1S/2004_03/No31/No31.html
2015/5/1(金) 午後 3:31
故意でなくて、MAFのコネクタが外れたか
MAF内に2系統あるセンサに共通線が断線状態などになる可能性は？
2015/5/1(金) 午後 3:33
In the wiring diagram I sent you, you can see the component labeled "G70/G42". This is the MAF Sensor (G70). It is also the IAT (Intake Air Temperature) Sensor (G42). As you can see they do not designate the separate circuits for air flow and temperature functions. Nor do they designate which wires go to which circuit.
Read more: http://www.justanswer.com/vw-volkswagen/870xt-volkswagen-2009-vw-jetta-2-5l-maf-iat-sensor-2008-diagram.html#ixzz3YrraE7bc
2015/5/1(金) 午後 4:00
Its kind of like a circuit board or computer, you no longer test and repair individual circuits. If there is a problem, you just plug in a replacement unit.
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2015/5/1(金) 午後 4:00
Disconnected MAF sensor, engine runs better.
http://www.golfmk6.com/forums/showthread.php?t=59893
My 2010 GTI gets a bunch of engine codes such as all the misfire codes,
P0606 Processor Fault,
P2177 System Too Lean off Idle,
P0101 Mass Air Flow Sensor (G70) Implausible Signal,
P2188 System too Rich at Idle.
2015/5/1(金) 午後 4:03
When cold it misses and the check engine light flashes. When warm it will miss as you come to a stop, sometimes it stalls. The tailpipe is black with carbon soot. I tried disconnecting the MAF sensor and it runs much better. I'll see tomorrow if the cold miss is gone but does it sound like a bad MAF sensor? Is there a way to test it?
2015/5/1(金) 午後 4:04
check the fuel trim, clear the faults, start it up and go to the basic setting for fuel trim and let it idle.
See where the fuel trims go and how fast they get there.
2015/5/1(金) 午後 4:05
Just for clarification, the obvious FIRST step would be to check the g/s reading from the MAF.
How would you go about finding what it should be? Someone else's logs?
2015/5/1(金) 午後 4:08