Mazda MX-5 Miata Sport 2007 Manual page 1045

2. Remove the air cleaner. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [LF] .)
3. Remove the drive belt. (See DRIVE BELT REPLACEMENT [LF] .)
4. Remove the under cover. (See TRANSVERSE MEMBER REMOVAL/INSTALLATION .)
5. Disconnect the CKP sensor connector.
6. Remove the installation bolts to remove the CKP sensor.
INSTALLATION
CAUTION:
1. Perform the following procedure so that piston No.1 is at the top dead center.
1. Move the ATF hose slightly out of the way. (AT)
Fig. 54: Identifying ATF Hose
Courtesy of MAZDA MOTORS CORP.
2. Remove the cylinder block lower blind plug and install the SST.
2007 Mazda MX-5 Miata Sport
2007 ENGINE PERFORMANCE Engine Control System - MX-5 Miata
When foreign material, such as an iron chips, gets on the CKP

sensor, it can cause abnormal output from the sensor because of
flux turbulence and adversely affect engine control. Be sure there is
no foreign material on the CKP sensor when replacing.