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Old 02-04-2013, 10:48 AM
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Re: Mass airflow problem

the interesting thing about the p0101 in the sprinter forum is that the code could be activated any time there is a an air leak in any of the pipes that go to or from the turbo. there are many connection points on the jeep but the main issue has been the turbo resonator, it commonly leaks. the easiest way to see a leak is to check for any oil residue on the turbo pipes because oil will get pushed out the leaking area by air pressure. follow all the piping with your hand and visually check for oil on the pipe. the pipe goes around the front of the engine and finally to the intake manifold.

2008 WK "S" Limited bright metallic silver, 5 speed W5J400 transmission, June 18/2008 build, 213RE rear differential with 3.73 axle ratio, 245/60R18 Goodyear Fortera tires, NV245 transfer case, 3.0L CRD.
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Old 01-10-2016, 02:17 PM
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Re: Mass airflow problem

How did you resolve this problem? I have been chasing down the same P0101 error message. Based on diagnostic test Susieque provided I am up to the point I need to perform the ECM Verification Test Ver. 1 since the voltage test of Pin 4 (K157) of the Mass Air Flow Sensor harness resulted in 5V. Since you tried another ECM and the P0101 persisted suggesting a harness issue, I am hoping you can point me to the problem area before I start pulling connectors and testing each wire. Thanks,
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