#25913 Organize and Clarify 9.1.7.C.1.o.

parts. These sensors and their locations and mounts, and their wiring harness leads may not
be altered except as allowed in subsection 9 below. Any sensors required for analog type
gauges must be in addition to the Mazda sensors. Data acquisition sensors may be added.
Relocating the oil pressure sending in order to install an oil pressure gauge is permitted. On
96-05 cars a single fixed bracket may be installed to support and secure the crank position
sensor (CPS) in its stock location. The bracket may only attach to the CPS, the CPS mounting
bolt, and the closest oil pump threaded mounting hole and must serve no other purpose.
4. The alternator may be OEM equivalent. The alternator drive pulley must be stock. The
alternator
must not be disabled in any way. Spark plugs and spark plug wires may be substituted.
Ignition timing is unrestricted within stock adjustment capability.
5. Batteries may be replaced with those of an alternate manufacturer, provided they are of
similar
amp-hour capacity, size, and are fitted in the standard location. Batteries shall weigh 18.0-
28.0 lbs. Additional battery hold-down devices may be used and are strongly recommended.
6. For 1999-2005 model years only, it is permitted to alter the ignition timing either by
elongating
the mounting holes of the stock crankshaft position sensor trigger wheel or by replacing it
with the Mazda adjustable trigger wheel, part number 0000-10-5100-AJ. Fasteners (including
upsizing) are open for pulley/timing plate attachment.
7. It is permitted to remove all components of the cruise control system.
8. It is permitted to remove the horn.
9. An electrical pigtail ranging from 3” to 6” in length and terminated with any 3 pin electrical
connector may be soldered and potted to the OEM cam sensor for the purpose of correcting a
known issue with the factory connection. The factory harness connector may be removed and
replaced with the appropriate mating connector.
10. Auxiliary control of the radiator cooling fan may be added to power the fan independent of
the
ECU. OEM control of the fan must remain functional.
o. Electrical Equipment
1. Batteries may be replaced with those of an alternate manufacturer, provided they are of
similar
amp-hour capacity, size, and are fitted in the standard location. Batteries shall weigh 18.0-
28.0 lbs. Additional battery hold-down devices may be used and are strongly recommended.
2. The alternator may be OEM equivalent. The alternator drive pulley must be stock. The
Alternator must not be externally regulated or disabled in any way other than by the OEM
production ECU/Wiring circuit and Master Kill switch.
3. Ignition coils must be stock Mazda parts. No modifications are permitted. Spark plugs and
spark plug wires may be substituted. Ignition timing is unrestricted within stock adjustment
capability. For 1999-2005 model years only, it is permitted to alter the ignition timing either by
elongating
the mounting holes of the stock crankshaft position sensor trigger wheel or by replacing it
with the Mazda adjustable trigger wheel, part number 0000-10-5100-AJ. Fasteners (including
upsizing) are open for pulley/timing plate attachment.
4. The ECU, engine and emission electrical harnesses must be as supplied by Mazda. No
circuit modifications are permitted. The ECU maps and inputs must not be modified. Chips
may not be replaced. The OBDII diagnostic port must be operational in all 1996-2005 cars.
Damaged harness wires and/or connectors may be repaired by splicing of OEM equivalent
connectors and leads.
5. All sensors related to engine operating parameters must be used and must be stock Mazda
parts. These sensors and their locations and mounts, and their wiring harness leads may not
be altered except as allowed in subsection 6 below. Any sensors required for analog type
gauges must be in addition to the Mazda sensors. Data acquisition sensors may be added.
Relocating/removal of the oil pressure sending unit in order to install an oil pressure gauge
is permitted. On96-05 cars a single fixed bracket may be installed to support and secure the
crank position sensor (CPS) in its stock location. The bracket may only attach to the CPS, the
CPS mounting bolt, and the closest oil pump threaded mounting hole and must serve no other
purpose.
6. An electrical pigtail ranging from 3” to 6” in length and terminated with any 3 pin electrical
connector may be soldered and potted to the OEM cam sensor for the purpose of correcting a
known issue with the factory connection. The factory harness connector may be removed and
replaced with the appropriate mating connector.
7. It is permitted to remove the horn.
8. It is permitted to remove all components of the cruise control system.
9. Auxiliary control of the radiator cooling fan may be added to activate the fan independent of
the ECU. OEM control of the fan must remain functional.