How are the cams on a MDS motor different?
How are the cams on a MDS motor different? The cams for the MDS motors are unique because four of the intake lobes have a “primary ramp” that takes up the “locking lash” in the MDS lifter before the “secondary ramp” closes the check ball in the lifter, and the timing on the four MDS exhaust lobes was advanced by a few degrees. Do you need to flash the PCM for MDS? Click to expand... The PCM needs to be flashed to remove the MDS solenoids from the programming, otherwise, you will get codes related to MDS faults. The advantage...