Description
Regitar USA MAP Sensor for Mercruiser MPI | Boat Supply Store
Restore optimal engine calibration and drivability to your Mercruiser MPI engine by replacing a faulty Manifold Absolute Pressure (MAP) sensor. This Regitar USA unit is precision-engineered as a direct-fit component for MCM V-6 and V-8 engines utilizing 305, 350, or 496 CID displacements and featuring the ECM 555 control module. Accurate atmospheric pressure readings are critical for the engine control unit to calculate precise fuel injection and ignition timing, directly impacting fuel efficiency and throttle response on your vessel.
Key Features
- Ensures accurate manifold absolute pressure readings for optimal engine performance.
- Designed specifically for Mercruiser MCM V-6 & V-8 (305, 350 & 496 CID) MPI Engines with ECM 555.
- High-quality construction for superior durability and long-term reliability.
- Direct-fit replacement for seamless installation without modifications.
- Replaces worn or malfunctioning OEM MAP sensors to resolve performance issues.
- Mitigates common issues like intermittent stalling and rough idling.
- Resolves Check Engine light illumination related to manifold pressure faults.
- Facilitates accurate diagnosis of engine performance problems.
Specifications
| Product Specifications | |
|---|---|
| Engine Brand | Mercury / Mercruiser |
| Fitment | MCM V-6 & V-8 (305, 350 & 496 CID) MPI Engines with ECM 555 |
Who This Is For
Marine mechanics and boat owners operating Mercruiser MCM V-6 & V-8 (305, 350 & 496 CID) MPI Engines with ECM 555 who are diagnosing performance deficits or conducting scheduled maintenance. This component is essential for ensuring the engine control module receives accurate pressure data for optimal operation.
How It Compares
| Feature | Regitar USA MAP Sensor for Mercruiser MPI | Sierra International |
|---|---|---|
| Engine Compatibility | MCM V-6 & V-8 (305, 350 & 496 CID) MPI Engines with ECM 555 | Various Mercury/Mercruiser MPI Engines |
| ECM Compatibility | ECM 555 | Not explicitly stated for ECM 555 |
| Engine Displacement (CID) | 305, 350 & 496 | Typically less capable |
Common Concerns Answered
Will this Regitar USA MAP sensor fit my specific Mercruiser MCM V-6 or V-8 engine with ECM 555?
This Regitar USA MAP sensor is engineered as a precise, direct-fit replacement specifically for Mercruiser MCM V-6 & V-8 engines utilizing 305, 350, or 496 CID displacements and equipped with the ECM 555 control module, ensuring compatibility without modifications.
What are the symptoms of a failing MAP sensor on a Mercruiser engine?
Symptoms of a failing MAP sensor can include intermittent engine stalling, rough idling, poor throttle response, increased fuel consumption, and illumination of the Check Engine light, often accompanied by diagnostic trouble codes related to manifold pressure.
How do I know if my MAP sensor needs to be replaced?
A failing MAP sensor is typically identified through diagnostic scans revealing manifold pressure anomalies, persistent engine performance issues despite other maintenance, or if the sensor's readings are outside expected parameters during live data stream analysis.
Frequently Asked Questions
What is a MAP sensor and why is it important for my Mercruiser engine?
A Manifold Absolute Pressure (MAP) sensor measures the atmospheric pressure within the engine's intake manifold. This data is crucial for the Engine Control Module (ECM) to accurately calculate the amount of air entering the engine, thereby optimizing fuel injection and ignition timing for peak performance and efficiency.
Will this Regitar USA MAP sensor fit my specific Mercruiser MCM V-6 or V-8 engine with ECM 555?
Yes, this Regitar USA MAP sensor is designed as a direct, precise fit for Mercruiser MCM V-6 and V-8 engines with 305, 350, and 496 cubic inch displacements that are equipped with the ECM 555 engine control module.
What are the symptoms of a failing MAP sensor on a Mercruiser engine?
Common symptoms of a faulty MAP sensor include an illuminated Check Engine light, erratic idling, poor acceleration, increased fuel consumption, and potential engine stalling under load. These issues arise because the ECM receives incorrect pressure readings, leading to improper fuel-air mixture.
How do I know if my MAP sensor needs to be replaced?
Diagnosis often involves scanning for Diagnostic Trouble Codes (DTCs) related to manifold pressure (e.g., P0106, P0107, P0108). Visual inspection for damage or corrosion and comparing live sensor data against known specifications can also indicate a need for replacement.
Is this MAP sensor a direct replacement for the original Mercruiser part?
Yes, the Regitar USA MAP sensor (MPN: RMJ002) is engineered as a direct-fit replacement for the original equipment manufacturer (OEM) part on compatible Mercruiser MCM V-6 & V-8 MPI engines with ECM 555, ensuring a seamless installation process.
