My PMCR Serial 4000+ for my 04.5 or newer truck didn come with a boost control, where is it?
– You no longer need it if your serial number is past 4000. We have programed these units with the Boost Limit feature. This allows you to control boost electronically, so you do not need the wastegate modification and can skip steps 23-27 on page 4 of the instructions. – The newer R47 remotes have Boost Limit control that allows you to set the boost limit to OFF or from 35-40 psi, the same as the R49. – A third mode has been added to the R37 to turn Boost Limit on or off. Press the center (gray) button until the top LED displays a “b”. The bottom LED will display a “0” or a “1”. A “0” means Boost Limit is off and a “1” means Boost Limit is on. When Boost Limit is on, the POWERMAXCR™ computer will limit power to keep the boost from exceeding the safe limit for the stock turbo (35 psi). Is it OK to pressure wash the PowerMax? – NO! The PowerMax is water resistant, but not waterproof. When the rail pressure harness is connected, the truck runs bad, misses, and surges. The rail pressure c
