About SMP Standard Motor Products supplies ignition, sensor and electrical components across the automotive and powersports markets, with V-twin parts covering switches, sensors and ignition hardware. The SMP Electronic Air Temperature Sensor is vital for your V-twin's EFI system, monitoring intake air temperature to provide real-time data for accurate fuel mapping and ignition timing. Why riders pick this Monitors intake air temperature accurately OEM-replacement quality for V-twin EFI Provides data for optimal fuel mapping Ensures consistent engine performance Accurate intake air temperature data is crucial for your V-twin's engine control unit (ECU) to calculate the optimal air-fuel mixture and ignition timing. A faulty air temperature sensor can lead to incorrect fuel delivery, resulting in poor performance, reduced fuel economy, and potential engine issues. This SMP sensor ensures your EFI system receives precise information, promoting consistent engine performance and reliability.Precise Air Temp Monitoring Electronic air temperature monitoring for EFI systems OEM-replacement quality for reliable data Compact sensor design for easy installation Enhances fuel mapping and ignition timing accuracy Maintain Peak EFI PerformanceDesigned as a direct OEM-replacement, this SMP Electronic Air Temperature Sensor integrates seamlessly into your V-twin's EFI system. Replacing a worn or damaged sensor with this new unit helps restore your bike's original performance characteristics. It's a straightforward swap that helps ensure your Harley-Davidson or Indian Motorcycle runs efficiently and reliably, preventing common issues associated with incorrect air temperature readings. Specifications Brand: SMP Manufacturer Part #: MCATS1 UPC: 091769319403 Weight: 0.295 lbs Common questions What does an air temperature sensor do on my V-twin? It monitors the temperature of the air entering your engine's intake. This data is sent to the EFI computer to optimize the fuel mixture and ignition timing, leading to better performance and efficiency. Is this SMP sensor an OEM replacement or an upgrade? This is an OEM-replacement sensor, meaning it's built to factory specifications to directly replace a failed original sensor. It's designed for a direct swap to restore original functionality. How can I tell if my air temperature sensor is faulty? Symptoms of a bad sensor can include a check engine light, rough idle, poor fuel economy, or difficulty with cold starts. A diagnostic scan can confirm if the sensor is the cause. Ordering from Vtwinbikers Brand new, sourced through authorized US distribution — never used, never grey-market. Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order. Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride. {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://vtwinbikers.com"},{"@type":"ListItem","position":2,"name":"Electrical","item":"https://vtwinbikers.com/collections/all"},{"@type":"ListItem","position":3,"name":"SMP","item":"https://vtwinbikers.com/collections/smp"},{"@type":"ListItem","position":4,"name":"SMP Electronic Air Temperature Sensor - V-Twin EFI","item":"https://vtwinbikers.com/products/smp-electronic-air-temperature-sensor-temp-sensor-275-01040"}]} {"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"What does an air temperature sensor do on my V-twin?","acceptedAnswer":{"@type":"Answer","text":"It monitors the temperature of the air entering your engine's intake. This data is sent to the EFI computer to optimize the fuel mixture and ignition timing, leading to better performance and efficiency."}},{"@type":"Question","name":"Is this SMP sensor an OEM replacement or an upgrade?","acceptedAnswer":{"@type":"Answer","text":"This is an OEM-replacement sensor, meaning it's built to factory specifications to directly replace a failed original sensor. It's designed for a direct swap to restore original functionality."}},{"@type":"Question","name":"How can I tell if my air temperature sensor is faulty?","acceptedAnswer":{"@type":"Answer","text":"Symptoms of a bad sensor can include a check engine light, rough idle, poor fuel economy, or difficulty with cold starts. A diagnostic scan can confirm if the sensor is the cause."}}]}
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