Prelude Type-SH L4-2157cc 2.2L DOHC H22A4 (VTEC) 16V (1998)
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Mainshaft/Countershaft Speed Sensors: Service and Repair
1. Remove the 6 mm bolt and the mainshaft speed sensor from the right side cover.
2. Remove the 6 mm bolt and the countershaft speed sensor from the transmission housing.
3. Replace the O-ring with a new one before installing the countershaft speed sensor or the mainshaft speed sensor.