If you add a turbo or centrifugal supercharger to an LTx family engine, you need to make sure that boost does not skew the Barometric Pressure reading into the ECM. Since these ECUs calculate a P-ratio of MAP/BARO for their speed density model, it’s important to have an accurate Baro reading at all times to avoid big errors in both fueling and torque estimates.
The DSX Baro Breakout Harness breaks out the barometric pressure sensor, which allows the calibrator to restore proper calculations in the ECM for pressure ratio on boosted applications. This harness is entirely plug and play… No splicing of any factory wiring harnesses required. 1 BAR SENSOR INCLUDED
