Honda Odyssey MAP Sensor Guide: 2001-2005
Understanding common problems and choosing the right replacement Manifold Absolute Pressure sensor for your Odyssey.
- A bad MAP sensor on a 2001-2005 Odyssey will almost always trigger a Check Engine Light with codes P0107 or P0108.
- Denso is the Original Equipment Manufacturer (OEM) for this part, making it a top-quality, reliable choice for replacement.
- Replacement is very easy for a DIYer, located on top of the throttle body and held by one screw.
- Symptoms like rough idle, poor gas mileage, and hesitation are common but can also be caused by vacuum leaks, so check hoses first.
Symptoms of a Failing MAP Sensor

When the MAP sensor in your Odyssey starts to fail, it sends incorrect information to the engine's computer. This can cause a variety of noticeable problems. You will almost certainly see the Check Engine Light on your dashboard. Common trouble codes associated with a bad MAP sensor are P0107 (sensor circuit low voltage) and P0108 (sensor circuit high voltage).
- Poor Engine Performance: You might feel like the van is struggling to accelerate or has a general lack of power.
- Rough Idle: The engine may shake or vibrate more than usual when you're stopped at a light.
- Bad Fuel Economy: A faulty sensor can cause the engine to use more fuel than necessary, so you'll be filling up the tank more often.
- Hesitation or Stalling: The engine might hesitate during acceleration or even stall unexpectedly.
- Increased Emissions: You might notice black smoke from the exhaust, which is a sign of the engine burning too much fuel. 🎬 Watch: Learn more about common bad MAP sensor symptoms.
Choosing the Right Aftermarket MAP Sensor

When replacing the MAP sensor on your 2001-2005 Odyssey, you have a choice between OEM and a wide range of aftermarket brands. For a critical sensor like this, quality matters.
Tier 1: OEM-Quality Brands
- Denso: Denso is the original equipment manufacturer (OEM) for Honda for this part. Choosing a Denso sensor is the closest you can get to buying the part from a Honda dealer, ensuring perfect fit and function. Be cautious of counterfeits online; buy from reputable sellers.
- NGK (NTK): NGK, through its NTK sensor line, is another top-tier manufacturer known for producing high-quality sensors that meet or exceed OEM standards.
- Delphi: Delphi is a major OEM supplier for many car brands and has a strong reputation for quality electronics. They are a reliable choice for a replacement sensor.
Tier 2: Reputable Aftermarket Brands
- Standard Ignition (SMP): A well-known and respected aftermarket brand that offers a good balance of quality and value.
- Walker Products: Walker is a long-standing company in the fuel and engine management world, offering dependable parts.
- Holstein: This brand provides quality sensors that are a solid alternative to more expensive OEM parts.
Tier 3: Economy Brands
- Brands like Facet, Global Parts, and Spectra fall into the economy category. While they are the most budget-friendly, their long-term reliability and performance may not match the higher-tiered brands. These can be a viable option if the budget is the primary concern for an older, high-mileage vehicle.
Cost of Replacing the MAP Sensor
| Part Type | Estimated Cost |
|---|---|
| New OEM (Honda-branded) | $90 - $135 |
| New Aftermarket | $25 - $115 |
| Shop Labor | $50 - $100 |
Frequently Asked Questions (FAQ)

Where is the MAP sensor located on a 2001-2005 Honda Odyssey?
The MAP sensor is located directly on top of the throttle body, making it very easy to access. It is held in place by a single Phillips head screw.
🎬 Watch this quick walkthrough of the MAP sensor replacement process.Can I clean the MAP sensor instead of replacing it?
Sometimes, cleaning the sensor can resolve issues, especially if it's just dirty from carbon buildup. You can use a dedicated Mass Airflow (MAF) sensor cleaner. However, if the sensor's internal electronics have failed, cleaning will not help and it must be replaced.
What happens if I don't replace a bad MAP sensor?
Driving with a bad MAP sensor can lead to persistently poor fuel economy, rough running, and stalling. Over time, running a rich air-fuel mixture can damage your catalytic converter, which is a much more expensive repair.
Is an OEM sensor from the dealer better than an aftermarket one?
The sensor from a Honda dealer is a guaranteed fit and quality part. However, brands like Denso are the OEM supplier, meaning they make the part for Honda. Buying a Denso-branded sensor from a reputable auto parts source gives you the same quality as the dealer part, often at a lower price.
Helpful Videos
Technical Specifications
OEM Part Numbers: 37830-PGK-A01
The sensor is located on top of the throttle body and secured with a single Phillips screw. It uses a 3-pin electrical connector and requires a new O-ring during installation to ensure a proper seal.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Honda Odyssey: