If MAF is malfunctioning should have code PO100 present, right? Its emmisions related.

My expirience with MAF problems is that it is pretty obvious somethings wrong as the turbo is off and the engine wont pull more than about 3k RPM.

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)