Wbsteanaten MAP Sensor 12569240 Manifold Absolute Pressure Replacement for Jeep/Chevy/GMC — OE Fit, Fast Response

Wbsteanaten MAP Sensor 12569240 is a direct-fit manifold absolute pressure replacement sensor that measures intake manifold pressure and sends accurate signals to the engine control unit for improved drivability and fuel management.

This replacement MAP (Manifold Absolute Pressure) sensor is designed to match OE form, fit and function for many GM and Jeep vehicles from the 1980s through the early 2000s. Built for durability under heat and vibration, it delivers a fast response and tight accuracy tolerance to help the ECU calculate fuel delivery and ignition timing more reliably than a worn or failing sensor.

How does this MAP sensor affect engine performance?

The MAP sensor provides real-time manifold vacuum/pressure readings so the ECU can adjust air-fuel mixture and spark timing. When the sensor is accurate, the engine runs more consistently during idle, acceleration and load changes.

• Rapid response time under 2 ms for immediate signal updates.
• Maximum error around 3% across 0°C to 85°C for consistent readings.
• Improved fuel metering and reduced hesitation when replacing a faulty sensor.

Will this part fit my vehicle and how do I confirm compatibility?

This MAP sensor is a replacement for part number 12569240 and lists extensive fitment across multiple Chevrolet, GMC, Pontiac and Jeep models. Always confirm your vehicle year, engine type and the original equipment (OE) reference before purchasing to ensure fitment.

• Compatible with many Chevy C/K, Silverado, Suburban, Astro, Lumina and Camaro applications.
• Includes fitment references for Jeep Cherokee, Wrangler and Grand Cherokee models within the stated years.
• Enter vehicle details or compare the sensor image and OE number before finalizing the order.

What are the durability and operating specs I should expect?

This unit is engineered to handle typical engine-bay stresses—temperature swings, vibration and exposure to engine bay contaminants. Its heat-resistant housing and internal electronics deliver long service life when installed correctly and used in compatible applications.

• Designed for gasoline and diesel engines; durable, heat-resistant construction.
• Stable operation across common under-hood temperature ranges.
• OEM-style connector and mounting for straightforward replacement.

How do I install the sensor and what should I check after replacement?

Installation is a straightforward bolt-and-plug replacement for vehicles with matching mounting and connector types. After installation, clear any stored trouble codes and verify steady manifold pressure readings or normal idle and throttle response.

• Disconnect battery briefly before swapping sensors to protect electronics.
• Match electrical connector and vacuum/pressure port orientation to the original unit.
• Check for CEL codes and monitor live MAP readings with a scan tool after fitment.

Who is this for: This Wbsteanaten MAP sensor is aimed at DIY mechanics, independent repair shops and owners of older GM and Jeep vehicles who need a reliable, cost-effective replacement for failing MAP sensors. It's suitable for people who want an OE-style swap with fast sensor response and tight accuracy tolerances, provided they confirm year, engine and OE part number compatibility before ordering.