ENGINE PERFORMANCE – Mazda MX-5 Miata 2003 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

1.8L

1.8L, Engine Performance Wiring Diagram (1 of 3) for Mazda MX-5 Miata 2003

List of elements for 1.8L, Engine Performance Wiring Diagram (1 of 3) for Mazda MX-5 Miata 2003:

• A/c system
• Anti-theft system (immobilizer unit)
• Camshaft position sensor (on right rear of engine)
• Charging system
• Condenser (on right front of engine)
• Cooling fans system
• Crankshaft position sensor (on front of engine)
• Egr valve (near right front of engine)
• Engine fuse 15a
• Fuel inj fuse 30a
• Fuel injectors
• Fuse block (behind left side of dash)
• G5 (right side of engine compt)
• Hot at all times
• Hot in run or start
• Ignition coil 1 (on top center rear of engine)
• Ignition coil 2 (on top center rear of engine)
• J/c x-19 (upper center of dash)
• J/c x-22 (left side of dash)
• Main fuse block (on right rear of engine compt)
• Main relay
• Mass airflow sensor (near left front corner of engine)
• Pnk
• Powertrain control module (pcm) (behind left side of dash)
• Red
• Vtcs solenoid valve (right rear of engine compt)
• X-01
• X-04

1.8L, Engine Performance Wiring Diagram (2 of 3) for Mazda MX-5 Miata 2003

List of elements for 1.8L, Engine Performance Wiring Diagram (2 of 3) for Mazda MX-5 Miata 2003:

• (at lower left side of dash) data link connector 2
• (behind left side of dash) cruise control module
• (beneath center rear of vehicle) fuel pump unit
• (on left rear of engine compt) data link connector
• (on right front of engine) iac solenoid valve
• (on right rear of engine compt) abs hydraulic unit/control module
• (on right rear of engine compt) egr boost sensor solenoid valve
• (on right side of engine compt) purge solenoid valve
• Clutch switch (w/m/t) (behind left side of dash)
• Fuel gauge sender unit
• Fuel pump
• Fuel pump relay
• G5 (right side of engine compt)
• G6 (front of engine)
• G9 (right rear quarterpanel)
• Heated oxygen sensor (front) (on exhaust system, on left side of engine)
• Heated oxygen sensor (rear) (on exhaust system, near rear of engine)
• J/c x-19 (upper center of dash)
• J/c x-22 (left side of dash)
• J/c x-23 (left side of dash)
• Jc-01 (left side of dash)
• Jc-03 (behind right headlight)
• Knock sensor (on right front of engine)
• Main fuse block (on right rear of engine compt)
• Nca
• Neutral switch (w/m/t) (on trans)
• Pnk
• Red
• Vtcs vacuum switch (right side of engine compt)
• W/ immobil- izer system
• W/o immobil- izer system

1.8L, Engine Performance Wiring Diagram (3 of 3) for Mazda MX-5 Miata 2003

List of elements for 1.8L, Engine Performance Wiring Diagram (3 of 3) for Mazda MX-5 Miata 2003:

• (behind left side of dash) brake switch
• (near left front of engine) psp switch
• (right front of engine) ocv
• (w/a/t)
• (w/m/t)
• 4aa
• 4ab
• 4ac
• 4ad
• 4ae
• 4af
• 4ag
• 4ah
• A/c system
• C-01
• Charge ind
• Charging system
• Check engine ind
• Egr boost sensor (on right side of engine compt)
• Engine coolant temperature (on top rear of engine)
• Evap system leak detection pump (under rear center of vehicle)
• Fuel gauge
• Fuse block (behind left side of dash)
• G9 (right rear quarter- panel)
• Hot at all times
• Hot in run or start
• Instrument cluster
• Intake air temperature (iat) sensor (on left front of engine compt)
• J/c x-21 (behind left side of dash)
• J/c x-22 (left side of dash)
• Main fuse block (on right rear of engine compt)
• Meter fuse 15a
• Micro- computer
• Pnk
• Powertrain control module (pcm) (behind left side of dash)
• Red
• Room fuse 10a
• Stop fuse 15a
• Throttle position sensor (on right front of engine)
• Transmission control module (w/a/t) (behind left side of dash)
• X-01
• X-04