Honda Fit Manifold Absolute Pressure (MAP) Sensor: A 2007-2020 Guide
Fix your Fit's rough idle, poor fuel economy, and hesitation by understanding and replacing your MAP sensor.
- A bad MAP sensor on a Fit causes rough idle, poor gas mileage, and hesitation, often with a P0107 or P0108 check engine code.
- Replacement is very easy for a DIYer, taking less than 15 minutes with basic tools.
- For best results, choose an OEM-tier brand like Denso, as Honda uses them for original parts.
- There are two different sensors for this generation range; verify the OEM part number for your year before buying.
Is Your Honda Fit Running Rough? It Could Be the MAP Sensor
If your 2007-2020 Honda Fit is experiencing symptoms like a shaky idle, poor acceleration, or suddenly getting worse gas mileage, a failing Manifold Absolute Pressure (MAP) sensor could be the culprit. This sensor plays a key role in how your engine performs. When it fails, it sends incorrect information to your car's main computer, leading to a variety of noticeable problems. This guide will walk you through the symptoms, how to choose the right replacement part, and what to expect during the repair.
Symptoms of a Bad MAP Sensor on a Honda Fit
A bad MAP sensor can make your reliable Honda Fit feel unpredictable. Here are the most common signs of failure:
- Rough or Erratic Idle: The engine may shake or shudder when you're stopped at a light.
- Poor Fuel Economy: A faulty sensor can cause the engine to use more fuel than necessary, so you'll be filling up more often.
- Hesitation or Stalling: Your car might delay when you press the gas pedal, or in some cases, stall completely.
- Check Engine Light: A failing MAP sensor will almost always trigger the Check Engine Light. Common trouble codes are P0107 (MAP Sensor Circuit Low Voltage) 🎬 See how to fix a P0107 MAP sensor circuit error. and P0108 (MAP Sensor Circuit High Voltage). 🎬 Watch: Troubleshooting a P0108 code on a 2015-2017 Fit.
- Failed Emissions Test: Incorrect air-fuel mixture can lead to high levels of pollutants in the exhaust.
Don't Mistake It for Other Issues
Symptoms like rough idle and misfires on a Honda Fit can also be caused by bad ignition coils or spark plugs, which are also common maintenance items. If you get a P0107 or P0108 code, the MAP sensor is the most likely cause. If you have misfire codes (P0300-P0304), check your coils and plugs first.
How to Choose the Right Aftermarket MAP Sensor
When replacing the MAP sensor on your Fit, you have a choice between OEM and a wide range of aftermarket brands. For a critical sensor like this, quality matters.
- OEM-Tier (Denso): Honda often uses Denso as its original equipment manufacturer. Choosing a Denso aftermarket sensor is the closest you can get to the original part's quality and reliability without the dealership price tag. It is engineered to meet Honda's exact specifications.
- Quality Aftermarket (Delphi, NGK, Standard Ignition, Hella): These are well-respected brands that produce reliable sensors. They are a solid choice for a balance of quality and price, often meeting or exceeding original specifications.
- Value-Oriented (Walker Products, Holstein, Global Parts): These brands offer a more budget-friendly option. While they are designed to be direct-fit replacements, they may not have the same long-term durability or precise calibration as OEM-tier brands. Be cautious with extremely cheap, unbranded sensors from online marketplaces, as they are known to fail quickly or not work correctly out of the box.
Pro Tip: Check Your Part Number
The Honda Fit uses two different MAP sensors across this year range. 2007-2008 models typically use part number 37830-PNC-003, while 2009-2020 models use 37830-RNA-A01. Always verify the correct part for your specific year before ordering.
Cost to Replace a Honda Fit MAP Sensor
| Part Type | Price Range |
|---|---|
| New OEM (Dealer) | $70 - $145 |
| New Aftermarket | $25 - $116 |
| Used OEM | $20 - $50 (Varies) |
| Shop Labor | $40 - $140 |
Frequently Asked Questions
Can I replace the MAP sensor myself?
Yes, this is a very beginner-friendly DIY job. The MAP sensor is located on top of the intake manifold and is held in by a single bolt. You simply unplug the electrical connector, unscrew the bolt, and swap the old sensor for the new one. The entire process can take as little as 10-15 minutes.
Are there any recalls for the Honda Fit MAP sensor?
No, there are no specific recalls or technical service bulletins (TSBs) from Honda or the NHTSA for widespread failure of the MAP sensor on 2007-2020 Honda Fit models.
What happens if I don't replace a bad MAP sensor?
Continuing to drive with a faulty MAP sensor can lead to persistently poor fuel economy, damage to your catalytic converter from a rich fuel mixture, and potential stalling, which can be a safety hazard. It's best to replace it as soon as it's diagnosed.
🎬 Watch this simple guide to diagnosing common MAP sensor codes.Why should I avoid the cheapest MAP sensor I can find?
Extremely cheap, unbranded sensors often use lower-quality components that can provide inaccurate readings to your car's computer. This can cause the same performance issues as the old, failed sensor or lead to premature failure, meaning you'll have to do the job all over again.
Helpful Videos
Technical Specifications
OEM Part Numbers: 37830-PNC-003 (2007-2008) 37830-RNA-A01 (2009-2020)
The MAP sensor is a small, 3-pin electronic sensor that mounts directly to the intake manifold, typically near the throttle body. It operates on a 5-volt reference signal from the ECU.
We Have This Part in Stock
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 Fit:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Honda Fit Running Rough? It Could Be the MAP Sensor
- Symptoms of a Bad MAP Sensor on a Honda Fit
- Don't Mistake It for Other Issues
- How to Choose the Right Aftermarket MAP Sensor
- Pro Tip: Check Your Part Number
- Cost to Replace a Honda Fit MAP Sensor
- Frequently Asked Questions
- 🎟️ Get 5% Off