Honda S2000 MAP Sensor Guide for 2000-2005 Models
Experiencing hesitation or a rough idle in your S2000? Your MAP sensor might be the culprit.
- A faulty MAP sensor is a common cause of high-RPM hesitation in 2000-2005 S2000s.
- A Technical Service Bulletin (TSB 04-073) exists for this issue; securing the connector with a clip or zip tie is recommended during replacement.
- Replacement is extremely easy and can be done in under 15 minutes with basic tools.
- S2000 owners strongly recommend using a genuine OEM (Denso) sensor over cheaper aftermarket alternatives for reliability.
Symptoms of a Bad MAP Sensor in a Honda S2000
A failing MAP sensor on an S2000 can cause a range of frustrating issues. One of the most common complaints is a noticeable hesitation or stutter during hard acceleration, especially at high RPMs when VTEC should engage. You might also experience a rough or erratic idle, poor fuel mileage, and a general lack of power. In severe cases, the engine can become almost undrivable, refusing to rev properly and sometimes stalling. 🎬 See how a faulty sensor causes the engine to cut out. While these symptoms often trigger a Check Engine Light with codes like P0107 or P0108, it's possible for the sensor to fail without illuminating the light.
Known Issue: TSB for Hesitation
Honda released a Technical Service Bulletin (TSB #04-073) for all 2000-2004 and early 2005 S2000s regarding hesitation at high RPMs. The bulletin states that engine vibrations can cause the electrical connection at the MAP sensor to become unstable. The official fix is to replace the sensor and install a special retainer clip (Honda P/N 06176-PCX-000) to secure the wiring harness. 🎬 Watch a demonstration of the official TSB fix and retainer clip. Many owners have found that a simple zip tie can also work to keep the connection tight.
OEM vs. Aftermarket Replacement MAP Sensors
When it's time to replace your MAP sensor, you have a choice between Original Equipment Manufacturer (OEM) and aftermarket parts. For a precision vehicle like the S2000, the owner community strongly favors using the OEM sensor made by Denso. Forum discussions frequently warn against using cheap, unbranded aftermarket sensors from online marketplaces, citing them as unreliable. While an inexpensive aftermarket sensor might seem tempting, it may not provide the accurate signals the S2000's ECU requires, potentially leading to continued performance issues. For a critical sensor that directly impacts engine performance, sticking with the proven quality of an OEM part is the recommended choice for peace of mind.
The "MAP Whack" Temporary Fix
If you're in a bind, many S2000 owners have had temporary success with the "MAP whack." This involves removing the sensor (it's held on by two screws) and lightly tapping it with the handle of a screwdriver. This can sometimes free up the internal components and restore function for a short time, but it is not a permanent solution.
Cost of Replacing a 2000-2005 Honda S2000 MAP Sensor
Replacing the MAP sensor is a relatively inexpensive repair, especially if you do it yourself. The part itself is the main cost.
| Part Type | Estimated Cost |
|---|---|
| New OEM (Denso) | $120 - $180 |
| New Aftermarket (Replacement) | $30 - $50 |
| Shop Labor | $50 - $100 |
Frequently Asked Questions
Where is the MAP sensor located on a 2000-2005 S2000?
The MAP sensor is located directly on top of the throttle body, making it very easy to access. It is a small black plastic sensor held in place by two screws with an electrical connector plugged into it.
Is it difficult to replace the S2000 MAP sensor myself?
No, this is a very easy DIY job. You only need basic hand tools to remove the two screws and unplug the connector. The entire process typically takes less than 15 minutes. 🎬 Watch this step-by-step guide to testing and replacing your sensor. Honda's official labor time for the job is just 0.2 hours.
Will an aftermarket MAP sensor work for a turbocharged or supercharged S2000?
No, a standard aftermarket replacement sensor is designed for a naturally aspirated engine. If your S2000 has forced induction (a turbo or supercharger), you will need a specific 3-bar or 4-bar MAP sensor that can read positive pressure (boost). Using a stock-style sensor on a boosted car will result in incorrect readings and poor engine performance.
Are there any recalls for the S2000 MAP sensor?
No, there have been no official safety recalls issued by the NHTSA for the MAP sensor on the 2000-2005 Honda S2000. However, there is a Technical Service Bulletin (TSB) that addresses a common hesitation issue related to the sensor's connection.
Helpful Videos
Technical Specifications
OEM Part Numbers: 37830-PAA-S00 37830-P0G-S00 06176-PCX-000
Located on the throttle body, secured by two screws. Uses a 3-pin electrical connector.
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.
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