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Hi guys I have a 2015 cla 180 . Was first tune to stage 1 @160 hp.190tq remap on my car and also modification. 1 air intake replaced to mst performance air intake, decatted downpipe from armytrix and an intercooler from Wagner. I recently tuned to stage 2 185hp ...340 nm with my rpm limit at 7200... am currently having limp mode sigh with engine diagnosis scan tool with a code (P029921 the boost pressure of the turbocharger is to low the ) also P167085 calibration of the torque curve of the control unit has a malfunction... I have checked intercooler for leaks service turbo everything seems to be 100% could anyone here please assist me with the knowledge of this limp mode please thanks