This aftermarket part modifies the manifold absolute strain (MAP) sensor’s enter sign. By bodily spacing the sensor away from its unique mounting level, it alters the strain studying despatched to the engine management unit (ECU). For example, on a turbocharged diesel engine, this alteration can scale back the reported enhance strain, doubtlessly mitigating diagnostic hassle codes (DTCs) associated to overboost situations.
The principal benefit of using this modification is the circumvention of sure engine administration limitations, significantly in purposes the place modifications have elevated engine efficiency past manufacturing unit parameters. Traditionally, these gadgets turned common as an economical various to extra advanced ECU recalibrations. They provide a simplified resolution to deal with points akin to gasoline economic system degradation or engine derating brought on by exceeding factory-defined strain thresholds.