ENGINE PERFORMANCE – Toyota MR2 2003 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

1.8L

1.8L, Engine Performance Wiring Diagram (1 of 3) for Toyota MR2 2003

List of elements for 1.8L, Engine Performance Wiring Diagram (1 of 3) for Toyota MR2 2003:

• (behind driver's seat)
• (dash harn, behind upper center of dash) i4
• (driver's door sill) b7
• (under right center pillar)
• A/c system
• Abs
• Acc
• Acmg
• B7 (driver's door sill)
• Batt
• C10
• C11
• C12
• Circuit opening relay
• Code
• Combination meter
• Cooling fans system
• Ea (left rear cylinder head)
• Efi 1 fuse 15a
• Efi 2 fuse 7.5a
• Efi main relay
• Electronic power steering system
• Engine control module (behind driver's seat, on panel)
• Engine room r/b (on left side of firewall)
• F/ps
• Fan
• Fuel pump (in fuel tank)
• Fusible link block (in left front corner of engine compt)
• Gauge fuse 7.5a
• Gnd
• Hot at all times
• Hot in on or start
• Hot in start
• If (left instrument panel brace)
• Ig2 fuse 15a
• Ig2 relay
• Ignition switch
• Igsw
• Imld
• Instrument cluster system
• J/b 6 (behind center of dash)
• Ksw
• Lcki
• Lock
• Malf ind
• Mpx1
• Mpx2
• Mrel
• Nsw
• Power steering system (power steering ecu)
• Pre
• Psct
• Ptnk
• R/b 3 (behind left corner of dash)
• Rxck
• Security indicator light (a/c switch)
• Sil
• Skid control ecu (on left front fenderwell)
• Spd
• St fuse 7.5a
• Sta
• Start
• Starting/ charging system (st relay)
• Std
• Stp
• Tach
• Tbp
• Tra
• Transmission system
• Transponder key amplifier (behind left side of dash, near ignition key cyl)
• Txct
• Unlock warning switch (center of dash)
• Vsv (pressure switching valve) (under rear of vehicle)
• W/ sequential m/t

1.8L, Engine Performance Wiring Diagram (2 of 3) for Toyota MR2 2003

List of elements for 1.8L, Engine Performance Wiring Diagram (2 of 3) for Toyota MR2 2003:

• (behind driver's seat)
• (engine harn, left center of firewall)
• (engine harn, left front of engine compt)
• (in left quarter panel) j/c 5
• (on bracket, above brake pedal) stoplight switch
• (under right rear of vehicle) vapor pressure sensor
• B10
• B10 (behind driver's seat)
• B12
• Center airbag sensor assembly (behind center of dash)
• D j/c 3
• Data link connector 3 (partial) (under left end of dash)
• Duty
• E4 (engine harn, center of fire- wall)
• Eb (left engine block)
• Ec (left engine block)
• Etcs fuse 15a
• F j/c 4
• Fusible link block (in left front corner of eng compt)
• Gnd
• Gsw2
• Hot at all times
• Idle air control valve (front of engine compt)
• Ignition coil & igniter 1 (top of cylinder head)
• Ignition coil & igniter 2 (top of cylinder head)
• Ignition coil & igniter 3 (top of cylinder head)
• Ignition coil & igniter 4 (top of cylinder head)
• Injector 1
• Injector 2
• Injector 3
• Injector 4
• J/b 6 (behind center of dash)
• J/c 3, j/c 4 (behind right end of dash)
• Nca
• Nca nca
• Noise filter (ignition) (on rear of cylinder head)
• Ptnk
• R/b 3 (behind left corner of dash)
• Short connector (srs no. 2) (behind left end of dash)
• Sil
• Stop fuse 15a
• Vcc
• Visc
• Vsv (canister closed valve) (left rear of engine compt)
• W/ sequential m/t
• W/o sequential m/t

1.8L, Engine Performance Wiring Diagram (3 of 3) for Toyota MR2 2003

List of elements for 1.8L, Engine Performance Wiring Diagram (3 of 3) for Toyota MR2 2003:

• (in front of eng compt) accel position sensor
• (left front of engine compt) vsv (evap)
• (left rear of cylinder head) camshaft position sensor
• (left side of eng compt, on air intake duct) mass airflow meter
• (left side of engine) crankshaft position sensor
• (on rear of cylinder head) engine coolant temp sensor
• (on throttle body) throttle position sensor
• +bm
• B10
• B12
• B12 (behind driver's seat)
• Camshaft timing oil control valve (on left front of cylinder head)
• Can+
• Can-
• Ccv
• Cl+
• Cl-
• Csmt
• E01
• E02
• E03
• E2g
• Eb (left engine block)
• Ec (left engine block)
• Engine control module (behind driver's seat, on panel)
• Evg
• Evp1
• Generator
• Geo1
• Heated oxygen sensor (bank 1, sensor 1) (on exhaust system)
• Heated oxygen sensor (bank 1, sensor 2) (on exhaust system)
• Heated oxygen sensor (bank 2, sensor 1) (on exhaust system)
• Ht1a
• Ht1b
• Ht2a
• Igf
• Igt1
• Igt2
• Igt3
• Igt4
• Knk1
• Knock sensor (left side of engine block)
• Meo1
• Mops
• Nca
• Nca nca
• Ne+
• Ne-
• Neo
• Ocv+
• Ocv-
• Oil pressure switch (on left side of engine)
• Ox1a
• Ox1b
• Ox2a
• Red
• Rso
• Splice b10 & b12 - (behind driver's seat)
• Tha
• Throttle control motor (top rear of engine)
• Thw
• Transmission system
• Vpa
• Vpa2
• Vta
• Vta2
• W/ sequential m/t
• W/o sequential m/t