A buzzing from the transmission when decelerating from 3,000 to 4,000 RPM can be caused by normal gear backlash noise in the transmission. Honda has an updated clutch disc to help reduce the noise.
There are known convertible top issues.
On certain models the PCM misinterprets data from the coolant sensor and causes the Check Engine light (MIL) to illuminate. A software update from Honda will repair this problem.
There is an issue when the ignition switch is on for about four or more hours. The powertrain control module (PCM) can misinterpret serial data and cause the Check Engine Light to illuminate. A software update from Honda will repair this problem.
The air/fuel sensor, located in the exhaust system, may be damaged by moisture in the exhaust resulting in illumination of the Check Engine Light. Replacing the damaged air/fuel sensor and updating the powertrain control module (PCM) software should correct this concern.
A binding gas cap due to a faulty filler neck can cause the Check Engine light (MIL
) to illuminate. Replacing the filler neck will address this concern.
A problem can occur with a vibrating expansion valve in the AC system and cause a whistling noise from the passengers vent. Replacing the expansion valve with an updated valve from Honda will repair this problem.
On some models the center console can lift in the rear. Trimming the padding underneath the console will repair this problem.
Moisture in the shifter housing can cause difficulty in selecting reverse or fifth gear. Removing cleaning and lubricating the shift lever will repair this problem.
The S2000 is set up with aggressive alignment settings and soft tire compounds to enhance handling. These alignment settings and soft tire compounds result in tires wearing out earlier than anticipated. This is a compromise made to have a car with exceptional handling characteristics.
The MAP sensor contacts can shift at high RPM causing a hesitation. Replacing the MAP sensor will repair the problem.
Certain models may experience intermittent popping out of second gear. Replacing second gear set will repair this issue. The transmission will have to be removed and disassembled for this repair.
Some S2000's can develop a problem with the transmission popping out of fourth gear. A new updated fourth and fifth gear assembly will repair the problem. The transmission will have to be removed and disassembled for this repair.
A faulty relay can cause the air pump to overheat and set a check engine light. Replacing the relay will fix this issue.