Project Matrix: Part 2
Even though we are using a speed/density TEC II engine management system to control fuel and ignition, the stock ECU is still controlling valve timing. This meant we had to keep the stock mass airflow sensor in place. XS Engineering took the unconventional route of putting the MAF sensor in the intercooler pipe. This allowed the sensor to be placed after the blow-off valve, preventing the MAF from measuring the air vented by the blow-off valve.
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