If you aren't running a boost controller, this info that you are reporting is the best news yet to those who are either running a boost controller thinking about adding one.
If the p1188 error occurs on a stock system with normal boost management system in factory configuration, it indicates that there is a real error in the PCM/TCM firmware.
If this error occurs in the field on a stock setup, DCX will have to find a way to correct the firmware, and in doing so, may allow some performance to slip out of the computer control in the process.
As it is, the PCM seems to dedicate a major portion of its processing time to restricting the performance potential of the engine/drivetrain system.
Maybe DCX will find that the effort made to de-rate the available power of the system in order to sell a computer "upgrade" as a performance option is a marketing ploy that backfired. It would be nice to get the performance the system was designed to produce without having to pay extra for it, while being led to believe that it is a Stage I performance upgrade.
As a possible side note, check the Green Connector going to the PCM. It should be the connector closest to to the Driver's Side edge of the engine compartment. The PCM is on the firewalll above and to the left of the Master Cylinder/Brake Vacuum Booster. If the Green connector isn't firmly plugged in, it may be a possible cause.
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