GM GENUINE PARTS MAP Sensor — Direct-Fit 213-4434 (19236265) for Accurate Manifold Pressure & OE Fit

This GM Genuine Parts MAP sensor replaces the factory unit to help the engine control module (ECM) accurately measure intake manifold pressure and adjust fuel delivery. Designed as a premium aftermarket component, it matches OE fit and electrical characteristics so installation is straightforward and the sensor communicates correctly with throttle and fuel systems. GM manufactured this sensor to meet strict standards for durability and performance, minimizing guesswork when sourcing a replacement part.

How does this MAP sensor affect engine performance?

The sensor provides the ECM with a voltage signal proportional to manifold pressure, which the control system uses to estimate air mass and set injector pulse widths. A correct MAP reading supports smoother idling, predictable throttle response, and efficient fuel metering without altering factory tuning. It does not change tuning but restores the engine’s original calibration accuracy.

• Supplies pressure data the ECM uses to calculate air entering the engine
• Helps maintain stable idle and smoother acceleration
• Works alongside throttle position and other sensors to refine fuel delivery
• Direct-fit design reduces installation time compared with generic units

Will this GM Genuine Parts sensor fit my vehicle and require special tools?

GM part 213-4434 (19236265) is a direct-replacement sensor for specific GM applications—check fitment against your VIN or parts catalog to confirm compatibility. Installation is usually bolt-and-plug straightforward and requires common hand tools; no ECU reprogramming is typically necessary when replacing like-for-like sensors. Always disconnect the battery and follow manufacturer torque specs for a safe swap.

• Direct-fit connector and mounting points for covered vehicles
• Standard hand tools usually suffice for removal and installation
• No calibration required when replacing with the correct OEM part
• Consult vehicle parts list or VIN lookup to verify fitment

What quality checks and longevity can I expect from this replacement?

This MAP sensor is produced to meet GM’s expectations for fit, form, and function, and goes through quality inspections to reduce defects. Materials and assembly methods are selected to withstand engine-bay conditions—temperature cycles, vibration, and exposure to common automotive fluids—so the part lasts under normal operating conditions. While wear can occur over many miles, this part is built to match original equipment durability.

• Manufactured to GM parts standards for consistent performance
• Tested to identify manufacturing defects before shipping
• Engine-bay rated materials resist heat and vibration
• OEM-style electrical characteristics preserve correct signaling to the ECM

How will I know if the MAP sensor is the issue and not another component?

Typical indicators of a failing MAP sensor include rough idle, poor fuel economy, and diagnostic trouble codes related to manifold pressure. A multimeter or scan tool can compare the sensor’s voltage output against expected values at key conditions; many auto shops perform live-data checks to confirm faults. Because the MAP sensor works with other inputs, technicians often rule out vacuum leaks, throttle sensors, and wiring faults before replacing the sensor.

• Look for erratic idle, reduced fuel efficiency, or engine warning lights
• Use scan tool live data to verify sensor voltage under varying loads
• Inspect wiring, connectors, and vacuum passages before replacement
• Replacing with a matching GM part prevents compatibility-based false readings

Who is this for: The GM Genuine Parts 213-4434 (19236265) MAP sensor is aimed at vehicle owners and professional mechanics seeking a factory-matching replacement for supported GM vehicles. It’s a practical choice when diagnostics point to a MAP sensor fault and you want an OEM-grade unit that fits without modification. Ideal for those who prioritize correct electrical characteristics, reliable fitment, and parts backed by GM’s production standards.