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 IAT/baro Breakout harness allows you to remove the IAT from the MAF assembly on newer vehicles so you can place it closer to the throttle for applications using methanol injection to meet fueling requirements. It also serves to break out the barometric pressure sensor, which allows the calibrator to restore proper calculations in the ECM for pressure ratio on boosted applications. IAT sensor and 3 bar MAP sensor can be included. This harness is entirely plug and play… No splicing of any factory wiring harnesses required. If you are ordering the 3 bar MAP sensor, you will install that sensor in your intake manifold, and then install your stock black MAP sensor into the breakout harness. SENSORS INCLDED
