AEM 30-8760 CAS Trigger Disc User Manual
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**Cam / Crank Angle Sensor: AEM trigger disc MUST be used
Discrepancies have been observed in the OEM cam/crank angle trigger discs between
model years and/or trim levels; to avoid confusion the Series 2 EMS does not support the
OEM Nissan trigger pattern. A replacement trigger disc is now included with every Nissan
EMS and must be installed before attempting to start the engine. The following installation
was performed on a stock Nissan S13 240SX so your installation may require more or less
removal of parts, but the procedure for the CAS disc change should be identical.
Tools/parts required:
Replacement trigger disc for Nissan GA/KA/SR cam angle sensor
(AEM P/N 35-8760, supplied with 30-6600, 30-6601, 30-6602, 30-6610, 30-6611,
30-6620, and 30-6623 EMS)
8mm and 10mm socket with ratchet and extension
10mm combination wrench
Medium pry bar
¼” flat screwdriver
No. 2 Phillips screwdriver
No. 1 Phillips screwdriver
Red threadlocker
WARNING:
Failure to perform the following procedure correctly could result in permanent damage to
mechanical and electrical sensor components, which could result in engine damage.
Please read all instructions carefully before attempting this procedure, and do not attempt
the install if you feel you may not be able to perform all operations safely without
damaging components. AEM will not be held liable for any damage that occurs as a result
of these instructions.