P2187 is lean at idle left bank, and 2189 is lean at idle rt bank. I have tried a spare new MAF, and physicaly checked for vacum leaks. I am going to check for low fuel pressure and then I will try a smoke test on the intake to ck for leaks.

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88 W124 3.0
96 R129 119eng
06 ML350
98 ML320 sold
02 CLK55 amg