MAP Sensor - CI - XMAP577
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Product Information
Full details
This guide is for automotive technicians and DIY enthusiasts seeking a reliable Manifold Absolute Pressure (MAP) sensor. The CI Ignition XMAP577 offers integrated air temperature sensing and broad compatibility, ensuring accurate engine performance. A potential caveat is its specific 4-pin connector, requiring verification for your vehicle's existing harness.
All features
| Model Part Number | XMAP577 |
|---|---|
| Brand | Ci Ignition |
Extended Product Information
FAQs
What is a MAP sensor?
A MAP (Manifold Absolute Pressure) sensor measures the pressure inside the intake manifold. This data is used by the engine's computer (ECU) to determine the amount of air entering the engine, which helps calculate the correct fuel injection amount and ignition timing.
Why does this sensor include an air temperature sensor?
Integrating an air temperature sensor allows the ECU to know the density of the incoming air more accurately. Denser, colder air requires more fuel, while less dense, hotter air requires less fuel. This combined sensing improves combustion efficiency across different temperatures.
How do I know if my MAP sensor needs replacement?
Common symptoms include a Check Engine Light, rough idling, stalling, poor acceleration, decreased fuel economy, and difficulty starting.
What is the operating pressure range of this sensor?
The CI Ignition XMAP577 operates within a pressure range of 20000 Pa to 254000 Pa.
Can I use this sensor if my vehicle has a different number of pins?
No, this sensor specifically has a 4-pin connector. You must ensure your vehicle's wiring harness matches this configuration. Always check compatibility before purchasing.
Where is the MAP sensor typically located?
It is usually mounted on the intake manifold, the throttle body, or on the firewall, connected to the intake manifold via a vacuum hose.
Troubleshooting
Check Engine Light (CEL) remains on after installation.
Ensure the connector is fully seated and locked. Verify sensor compatibility with your vehicle. Clear the CEL using an OBD-II scanner and check if it returns.
Rough idle or stalling.
Confirm the sensor is correctly installed and not damaged. Check for vacuum leaks in the intake system. Ensure the correct part number was used.
Poor engine performance or reduced fuel economy.
Re-verify sensor installation and connection. Test the sensor's signal output with a multimeter or oscilloscope if possible. Ensure no other engine issues are present.
Pros and Cons
Pros
- Dual functionality with integrated air temperature sensor.
- Broad compatibility with numerous OEM and aftermarket part numbers.
- Ensures accurate engine load and air density readings.
- Contributes to improved fuel efficiency and engine performance.
- Robust design for demanding automotive environments.
Cons
- Requires verification of 4-pin connector for specific vehicle application.
- May require specialized tools or knowledge for installation in some vehicles.
- Not a universal fit; precise compatibility must be confirmed.
Setup, Compatibility & Care
Setup:
- Ensure the vehicle's ignition is OFF and the battery is disconnected.
- Locate the existing MAP sensor, typically mounted on the intake manifold or near the throttle body.
- Disconnect the electrical connector from the old sensor.
- Carefully remove the old sensor (it may be held by a bolt or clip).
- Inspect the mounting port for debris and clean if necessary.
- Install the new XMAP577 sensor, ensuring a secure fit.
- Reconnect the electrical connector.
- Reconnect the battery and turn the ignition ON.
- Start the engine and check for any warning lights.
Compatibility:
Always verify the XMAP577's compatibility with your specific vehicle make, model, and year. Check the cross-reference list provided against your original part number. Key OE references include FORD 1136735, 99VW9E928AB, ROLLS-ROYCE PF100636PB, and VAG 038906051B, 03F145673F, 03G906051D.
Care:
- Avoid spraying cleaning solvents directly onto the sensor.
- Handle the sensor with care to prevent damage to the connector pins or housing.
- Regularly inspect vacuum lines connected to the intake manifold for leaks, which can affect MAP sensor readings.