ENGINE PERFORMANCE – Toyota 4Runner 1998 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.7L

2.7L, Engine Performance Wiring Diagrams (1 of 2) for Toyota 4Runner 1998

List of elements for 2.7L, Engine Performance Wiring Diagrams (1 of 2) for Toyota 4Runner 1998:

• (dash harn, behind fuse box)
• (eng harn, top left of engine)
• (near steering column) center j/b
• (right side of dash)
• (splice i11: i/p harn right side of dash)
• 4wd
• A/c system
• Ac1
• Acc
• Act
• Add ind switch (4wd only)
• Atf
• Batt
• Camshaft position sensor (left center of engine)
• Conn e5
• Conn e6
• Conn e7
• Conn e8
• Crankshaft position sensor (left center of engine)
• Cruise control system
• Data link connector 1 (left side of engine compt)
• Driver side j/b (lower left side of dash)
• E01
• E02
• E03
• Egr
• Els
• Engine control module (behind right side of dash)
• Engine room r/b (left side of engine compt)
• Evp
• Exterior lights & defogger systems
• Fuel injector 1
• Fuel injector 2
• Fuel injector 3
• Fuel injector 4
• G112 (left side of engine)
• G119 (right front of engine)
• G131 (intake manifold)
• Gnd
• Hot at all times
• Hot in start
• Ht1
• Ht2
• I11
• I11 (right side of dash)
• Ig-
• Igf
• Ign fuse 7.5a
• Ignition coil 1 & ignitor 1
• Ignition coil 2 & ignitor 2
• Ignition switch
• Igt
• Igt1
• Igt2
• Inj1
• Inj2
• Inj3
• Inj4
• Knk
• Lock
• Ne-
• Noise filter (right side of engine compt)
• Nsw
• Od1
• Od2
• Oil
• Oil-w
• Ox1
• Ox2
• Pnk
• Ptnk
• Pwr
• Red
• Rsc
• Rso
• Run
• Sdl
• Sp1
• Sp2+
• Sp2-
• Sta
• Start
• Start/ charge system
• Stop fuse 10a
• Stop light switch (on brake pedal support)
• Tach
• Te1
• Tfn
• Thg
• Thw
• Tpc
• Vcc
• Vehicle speed sensor (electronically controlled transmission)
• Vta

2.7L, Engine Performance Wiring Diagrams (2 of 2) for Toyota 4Runner 1998

List of elements for 2.7L, Engine Performance Wiring Diagrams (2 of 2) for Toyota 4Runner 1998:

• (below left side of dash) circuit opening relay
• (dash harn, upper right side of dash)
• (engine room r/b) efi relay
• (i/p harn, left kick panel)
• (i/p harn, right side of dash) i11
• (near steering column tube) center j/b
• (splice i11: i/p harn, right side
• A/t fluid temperature sensor (in transmission)
• A/t oil temp ind
• A/t p ind
• Bat
• C10
• C11
• C12
• C14
• C19
• Cen- ter j/b (near steer col)
• Cruise control system
• Data link connector 3 (under center left side of dash)
• Driver side j/b (lower left side of dash)
• E2g
• Ect pwr ind
• Efi fuse 15a
• Egr gas temp sensor (top of engine)
• Egr vsv (left side of engine)
• Electronically controlled trans pattern select sw
• Electronically controlled transmission solenoid (on transmission)
• Engine coolant temp sensor (top rear of engine)
• Engine room r/b (left side of engine compartment)
• Engine room r/b (left side of engine compt)
• Evap vsv (left side of engine compartment)
• Fuel pump
• G100 (front left fender)
• G131 (intake manifold)
• G200 (left kick panel)
• G202 (left kick panel)
• G203 (right kick panel)
• Gauge fuse 10a
• Heated oxygen sensor (bank 1 sensor 1) (rear underside of eng compt)
• Heated oxygen sensor (bank 1 sensor 2) (underside of vehicle)
• Hot at all times
• Hot in run or start
• I10
• I11
• I19
• I19 (dash harn, upper right of dash)
• Idle air control valve (left side of engine)
• Instrument cluster
• Instrument cluster system
• J/c j6 (left dash)
• Knock sensor (left side of engine)
• Mal- function ind
• Mass air flow meter (in air intake)
• O/d main sw
• O/d off ind
• Obd fuse 7.5a
• Of dash)
• Park/neutral position switch (on transmission)
• Pnk
• Ptnk
• Red
• Sdl
• Speedo
• Tach
• Tha
• Throttle position sensor (on throttle body assy)
• Transfer l4 pos detection switch
• Transfer neutral position detection switch
• Vapor pressure sensor (left side of engine compartment)
• Vapor pressure sensor vsv (left side of engine compt)
• Vcc

3.4L

3.4L, Engine Performance Wiring Diagrams (1 of 3) for Toyota 4Runner 1998

List of elements for 3.4L, Engine Performance Wiring Diagrams (1 of 3) for Toyota 4Runner 1998:

• (dash harn, right side of dash)
• 4wd
• A/t fluid temperature sensor (on transmission)
• Add indicator switch
• Camshaft position sensor (top front of engine)
• Center j/b (near str col)
• Conn e11
• Conn e12
• Conn e9
• Crankshaft position sensor (front of engine)
• Data link connector (below center left of dash)
• E01
• E02
• E03
• E15
• E22
• Engine control module (behind right side of dash)
• Engine room r/b (left side of engine compt)
• Evp
• Ext
• G112 (left side of intake manifold)
• G131 (left intake manifold)
• G203 (right kick panel)
• Gnd
• Hot at all times
• Ht1
• Ht2
• I11
• Igc1
• Igc2
• Igc3
• Igf
• Igniter (right side of engine compartment)
• Ignition coil 1 (right side of engine)
• Ignition coil 2 (right side of engine)
• Ignition coil 3 (right side of engine)
• Igt1
• Igt2
• Igt3
• Injector 1
• Injector 2
• Injector 3
• Injector 4
• Injector 5
• Injector 6
• Knk1
• Knk2
• Ne+
• Ne-
• Nsw
• Obd fuse 7.5a
• Oil
• Oil-w
• Ox1
• Ox2
• Pnk
• Power steering oil pressure switch (right front of engine)
• Psw
• Ptnk
• Pwr
• Red
• Rsc
• Rso
• Sdl
• Sil
• Sp2+
• Sp2-
• Sta
• Starting/charging system
• Te1
• Tfn
• Tha
• Thw
• Tpc
• Vehicle speed sensor (on transmission)
• Vta

3.4L, Engine Performance Wiring Diagrams (2 of 3) for Toyota 4Runner 1998

List of elements for 3.4L, Engine Performance Wiring Diagrams (2 of 3) for Toyota 4Runner 1998:

• (dash harn, behind fuse block)
• (dash harn, right side of dash) i11
• (dash harness, upper left side of dash)
• (engine harness, top front of engine)
• (front left fender) g100
• (near left rear door sill) j/c j12
• (top of battery) j/c j1
• Acc
• Center j/b (near steering column tube)
• Circuit opening relay (below left side of dash)
• Data link connector 1 (left side of engine compt)
• Driver side j/b (lower left side of dash)
• E10
• Efi fuse 15a
• Efi relay
• Electronically controlled transmission patern select switch
• Engine room r/b (left side of engine compartment)
• Evap vsv (left side of engine compartment)
• Fuel pump
• G200 (left kick panel)
• Gauge fuse 7.5a
• Heated oxygen sensor (bank 1 sensor 1) (rear underside of engine compartment)
• Heated oxygen sensor (bank 1 sensor 2) (underside of vehicle)
• Hot at all times
• Hot in start
• Hot in start or run
• I11
• Idle air control valve (top right side of engine)
• Ign fuse 7.5a
• Ignition switch
• J/c j2 (top of battery)
• J6 junction connector (behind combination meter)
• Knock sensor 1 (middle of engine)
• Knock sensor 2 (middle of engine)
• Lock
• Red
• Run
• Sta fuse 7.5a
• Start
• Stop fuse 10a
• Stop light switch (on brake pedal support)
• Te1
• Vapor pressure sensor vsv (left side of engine compartment)

3.4L, Engine Performance Wiring Diagrams (3 of 3) for Toyota 4Runner 1998

List of elements for 3.4L, Engine Performance Wiring Diagrams (3 of 3) for Toyota 4Runner 1998:

• (dash harn, right end of dash)
• (dash harn, right side of dash)
• (dash harn, upper right side of dash)
• (right side kick panel) g203
• A/c system
• A/t oil temp ind
• A/t p ind
• Ac1
• Act
• Batt
• C10
• C11
• C12
• C14
• C19
• Center j/b (near steering column)
• Conn e12
• Cruise control system
• Detection switch (transfer l4 position) (on transmission)
• Detection switch (transfer neutral position) (on transmission)
• Driver side j/b (lower finish panel)
• E16
• E18
• Ect pwr ind
• Electronically controlled transmission solenoid
• Engine control module (behind right side of dash)
• Engine coolant temperature sensor (top front of engine)
• G200 (left kick panel)
• I10
• I11
• I19
• I20
• Idlo
• Instrument cluster
• J5 junction connector (behind combination meter)
• J6 junction connector (behind combination meter)
• Mal- function ind
• Mass air flow meter (right side of engine compartment)
• O/d main switch (shift lock control computer)
• O/d off ind
• Od1
• Od2
• Park/neutral position switch
• Ptnk
• Sil
• Sp1
• Speedometer
• Tachometer
• Tha
• Throttle position sensor (on throttle body assy)
• Vapor pressure sensor (left rear of engine compartment)
• Vcc