OBD CODE P0172
12-03-2013, 01:30 PM
#1
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w203 c200k
OBD CODE P0172
My w203 c200k has a code P0101 and i change the MAF sensor. All ok and work perfect with new MAF SENSOR (original part not aftermarket) . Now i have a P0172 system too rich, Bank 1
Any ideas for that code?
Thanks
Any ideas for that code?
Thanks
12-03-2013, 02:47 PM
#2
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You may have a hose or ducting air leak. Check all is assembled tightly.
Some people spray aerostart around joints to see whether there is a air leak. The engine revs will change with the change in fuel air ratio.
Some people spray aerostart around joints to see whether there is a air leak. The engine revs will change with the change in fuel air ratio.
12-06-2013, 01:27 AM
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kia
Possible causes
The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of “oiled” air filters can cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry. There could be a vacuum leak. There could be a fuel pressure or delivery problem
Follow:
http://www.obd-data.com/p0172.html
The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of “oiled” air filters can cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry. There could be a vacuum leak. There could be a fuel pressure or delivery problem
Follow:
http://www.obd-data.com/p0172.html
12-06-2013, 02:34 AM
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2005 C Wagon (No snickering please!)
Check the fuel pressure. Leaky vacuum hoses usually make the system lean. For rich look to pressure on the rail, leaky injectors, or bad plugs.
10-20-2017, 04:19 AM
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w2010 w204 c300 amg sports package
same issue system bank 1 too rich
notice this happen after i replaced the air filter with a knn
not a pod just the one that sits in the air box
any caN HELP?
not a pod just the one that sits in the air box
any caN HELP?
