If you have an S2000 and can't monitor anything else, monitor the oil pressure and water temperature at a minimum. Even S2000s that are only driven on the street have been known to fall out of comfortable parameters, unknowingly to the drivers most times and more often as mileage increases. Here, we have prepared the oil pressure sensor with Teflon tape for installation.
To install the AEM pressure sensor, remove the OEM valve timing oil pressure switch, located on the head just below the VTEC solenoid.
Don't forget to clean off the silicon residue before installing the new pressure sensor.