ENGINE PERFORMANCE – GMC Savana Special G3500 2008 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.8L VIN C

4.8L VIN C, Engine Performance Wiring Diagram (1 of 5) for GMC Savana Special G3500 2008

List of elements for 4.8L VIN C, Engine Performance Wiring Diagram (1 of 5) for GMC Savana Special G3500 2008:

• (cutaway: in chassis harness, 87 cm from ebcm connector breakout) (passenger/cargo: in chassis harness, 44 cm from ebcm connector breakout)
• (in engine harness, 16 cm from underhood fuse block x1 breakout) j123
• (in exhaust pipe, in back of catalytic converter) heated oxygen sensor (ho2s) bank 1 sensor 2
• (in exhaust pipe, in back of catalytic converter) heated oxygen sensor (ho2s) bank 2 sensor 2
• (or pnk)
• 4.8l/6.0l
• 5.3l
• 5v ref 1
• 5v ref 2
• A/c refrigerant pressure sensor
• Acc ser data
• Accelerator pedal position (app) sensor (under left side of dash)
• Actuator sig
• Anti-lock brakes system
• App sens 1 sig
• App sens 2 sig
• Batt pos volt
• Brk sw fuse 32 10a
• Computer data lines system
• Ecm batt fuse 54 10a
• Ecm ign fuse 48 15a
• Engine control module (ecm) (left side of engine compt)
• Fuel level sens
• Fuel pump & sender assembly (on fuel tank)
• Fuel tank pressure (ftp) sensor (except 57 gal fuel tank: on fuel tank) (57 gal fuel tank: at fuel tank)
• G103 (on right rear of engine)
• Gmlan data+
• Gmlan data-
• Ho2s hi sig
• Ho2s lo sig
• Hot at all times
• Hot w/ run/ crnk relay 69 energized
• Iat sens sig
• Ign volt
• J101
• J301
• Low ref
• Maf sens sig
• Mass air flow (maf)/intake air temperature (iat) sensor (attached to air intake duct)
• Nca
• Pnk
• Power distribution system
• Press sens sig
• Pwrtrn rly ctrl
• Relay ctrl
• Start rly ctrl
• Starting/charging system
• Stop lamp switch (behind left side of dash, above brake pedal)
• Tan
• Tan c
• Tcc brake sig
• Transmissions system
• Underhood fuse block (on left side of engine compt)
• Vss

4.8L VIN C, Engine Performance Wiring Diagram (2 of 5) for GMC Savana Special G3500 2008

List of elements for 4.8L VIN C, Engine Performance Wiring Diagram (2 of 5) for GMC Savana Special G3500 2008:

• (on left rear of engine) g102
• (on right rear of engine) g103
• (or pnk)
• 4.8l/6.0l
• 5.3l
• Clutch rly ctrl
• Cnstr vent sol fuse 17 10a
• Computer data lines system
• Ecm pwr/trn fuse 50 10a
• Engine control module (ecm) (left side of engine compt)
• Evap sol ctrl
• Evaporative emission (evap) canister vent solenoid (near front of fuel tank)
• Even ign/ inj fuse 52 20a
• Fuel pump relay 72 (4.8l/6.0l)
• Fuel/pump fuse 2 20a
• G400 (on inner left rear frame rail)
• Gnd
• Ho2s hi sig
• Ho2s lo ctrl
• Hot at all times
• Ic 1 ctrl
• Ic 2 ctrl
• Ic 3 ctrl
• Ic 4 ctrl
• Ic 5 ctrl
• Ic 6 ctrl
• Ic 7 ctrl
• Ic 8 ctrl
• Ign
• Instrument panel cluster (ipc)
• J101
• J102
• Logic
• Low engine oil pressure ind
• Low ref
• Maf/ cnstr vent fuse 49 15a
• Malfunction indicator lamp
• Mil ctrl
• O2 snsr 1 fuse 46 10a
• O2 snsr 2 fuse 56 10a
• Odd ign/inj fuse 55 20a
• Pnk
• Pwr/trn relay 76
• Red
• Tos sig
• Transmissions system air conditioning system
• Underhood fuse block (on left side of engine compt)

4.8L VIN C, Engine Performance Wiring Diagram (3 of 5) for GMC Savana Special G3500 2008

List of elements for 4.8L VIN C, Engine Performance Wiring Diagram (3 of 5) for GMC Savana Special G3500 2008:

• (at rear of vehicle, attached to left rear frame rail) (5.3l) fuel pump flow control module
• (at top left of engine)
• (in odd ignition/coil module jumper harness, on top left side of engine)
• 5v ref
• Bare
• Computer data lines system
• Fcsm ign fuse 11 10a
• Fscm batt fuse 15 20a
• G102 (on left rear of engine)
• G300 (on left frame rail, near ebcm)
• Gmlan data
• Gnd
• Hot at all times
• Hot w/ run/ crnk relay 69 energized
• Ign volt
• Ignition coil/module 1
• Ignition coil/module 3
• Ignition coil/module 5
• Ignition coil/module 7
• J182
• J184
• J315
• Low ref
• Nca
• Pnk
• Pnk d
• Pnk pnk pnk pnk pnk pnk pnk pnk pnk
• Power distribution system
• Pump ctrl
• Red c
• Relay ctrl
• Sens sig
• Serial data
• Spark plug
• Tan
• Underhood fuse block (on left side of engine compt)

4.8L VIN C, Engine Performance Wiring Diagram (4 of 5) for GMC Savana Special G3500 2008

List of elements for 4.8L VIN C, Engine Performance Wiring Diagram (4 of 5) for GMC Savana Special G3500 2008:

• (at top right of engine)
• (in even ignition/coil module jumper harness, on top right side of engine) j185
• (on left side of intake manifold)
• (on right side of intake manifold)
• Engine oil pressure (eop) sensor (on top rear of engine)
• Fuel injector 1
• Fuel injector 2
• Fuel injector 3
• Fuel injector 4
• Fuel injector 5
• Fuel injector 6
• Fuel injector 7
• Fuel injector 8
• Fuel rail pressure (fpr) sensor
• G102 (on left rear of engine)
• Ignition coil/module 2
• Ignition coil/module 4
• Ignition coil/module 6
• Ignition coil/module 8
• J183
• J188
• Manifold absolute pressure (map) sensor (at top rear of engine, on intake manifold)
• Nca
• Pnk
• Pnk d
• Pnk pnk pnk pnk pnk pnk pnk pnk pnk
• Red c
• Spark plug
• Tan

4.8L VIN C, Engine Performance Wiring Diagram (5 of 5) for GMC Savana Special G3500 2008

List of elements for 4.8L VIN C, Engine Performance Wiring Diagram (5 of 5) for GMC Savana Special G3500 2008:

• (6.0l) camshaft position (cmp) actuator solenoid valve
• (below front of intake manifold) knock sensor (ks) 1
• (below rear of intake manifold) knock sensor (ks) 2
• (on top of engine, near throttle body) evaporative emission (evap) canister purge solenoid
• 5v ref 1
• 5v ref 2
• Camshaft position (cmp) sensor (front of engine, between water pump & crank pulley)
• Cen field sig
• Ckp sens sig
• Cmp sens sig
• Crankshaft position (ckp) sensor (on lower right rear of engine, near starter motor)
• Ect sens sig
• Engine control module (ecm) (left side of engine compt)
• Engine coolant temperature (ect) sensor (at left front of engine)
• G103 (on right rear of engine)
• Gen on sig
• Heated oxygen sensor (ho2s) bank 1 sensor 1 (in exhaust pipe, in front of catalytic converter)
• Heated oxygen sensor (ho2s) bank 2 sensor 1 (in exhaust pipe, in front of catalytic converter)
• Ho2s hi sig
• Ho2s lo ctrl
• Ho2s lo sig
• Inj 1 ctrl
• Inj 2 ctrl
• Inj 3 ctrl
• Inj 4 ctrl
• Inj 5 ctrl
• Inj 6 ctrl
• Inj 7 ctrl
• Inj 8 ctrl
• Intake sol
• J101
• Ks 1 sig
• Ks 2 sig
• Low ref
• Map sens sig
• Oil sw sig
• Pnk
• Pnk d
• Pre sens sig
• Sol ctrl
• Starting/ charging system
• Starting/charging system
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Tan
• Tan a
• Throttle body
• Tp sens 1 sig
• Tp sens 2 sig

6.0L VIN K

6.0L VIN K, Engine Performance Wiring Diagram (1 of 5) for GMC Savana Special G3500 2008

List of elements for 6.0L VIN K, Engine Performance Wiring Diagram (1 of 5) for GMC Savana Special G3500 2008:

• (cutaway: in chassis harness, 87 cm from ebcm connector breakout) (passenger/cargo: in chassis harness, 44 cm from ebcm connector breakout)
• (in engine harness, 16 cm from underhood fuse block x1 breakout) j123
• (in exhaust pipe, in back of catalytic converter) heated oxygen sensor (ho2s) bank 1 sensor 2
• (in exhaust pipe, in back of catalytic converter) heated oxygen sensor (ho2s) bank 2 sensor 2
• (or pnk)
• 4.8l/6.0l
• 5.3l
• 5v ref 1
• 5v ref 2
• A/c refrigerant pressure sensor
• Acc ser data
• Accelerator pedal position (app) sensor (under left side of dash)
• Actuator sig
• Anti-lock brakes system
• App sens 1 sig
• App sens 2 sig
• Batt pos volt
• Brk sw fuse 32 10a
• Computer data lines system
• Ecm batt fuse 54 10a
• Ecm ign fuse 48 15a
• Engine control module (ecm) (left side of engine compt)
• Fuel level sens
• Fuel pump & sender assembly (on fuel tank)
• Fuel tank pressure (ftp) sensor (except 57 gal fuel tank: on fuel tank) (57 gal fuel tank: at fuel tank)
• G103 (on right rear of engine)
• Gmlan data+
• Gmlan data-
• Ho2s hi sig
• Ho2s lo sig
• Hot at all times
• Hot w/ run/ crnk relay 69 energized
• Iat sens sig
• Ign volt
• J101
• J301
• Low ref
• Maf sens sig
• Mass air flow (maf)/intake air temperature (iat) sensor (attached to air intake duct)
• Nca
• Pnk
• Power distribution system
• Press sens sig
• Pwrtrn rly ctrl
• Relay ctrl
• Start rly ctrl
• Starting/charging system
• Stop lamp switch (behind left side of dash, above brake pedal)
• Tan
• Tan c
• Tcc brake sig
• Transmissions system
• Underhood fuse block (on left side of engine compt)
• Vss

6.0L VIN K, Engine Performance Wiring Diagram (2 of 5) for GMC Savana Special G3500 2008

List of elements for 6.0L VIN K, Engine Performance Wiring Diagram (2 of 5) for GMC Savana Special G3500 2008:

• (on left rear of engine) g102
• (on right rear of engine) g103
• (or pnk)
• 4.8l/6.0l
• 5.3l
• Clutch rly ctrl
• Cnstr vent sol fuse 17 10a
• Computer data lines system
• Ecm pwr/trn fuse 50 10a
• Engine control module (ecm) (left side of engine compt)
• Evap sol ctrl
• Evaporative emission (evap) canister vent solenoid (near front of fuel tank)
• Even ign/ inj fuse 52 20a
• Fuel pump relay 72 (4.8l/6.0l)
• Fuel/pump fuse 2 20a
• G400 (on inner left rear frame rail)
• Gnd
• Ho2s hi sig
• Ho2s lo ctrl
• Hot at all times
• Ic 1 ctrl
• Ic 2 ctrl
• Ic 3 ctrl
• Ic 4 ctrl
• Ic 5 ctrl
• Ic 6 ctrl
• Ic 7 ctrl
• Ic 8 ctrl
• Ign
• Instrument panel cluster (ipc)
• J101
• J102
• Logic
• Low engine oil pressure ind
• Low ref
• Maf/ cnstr vent fuse 49 15a
• Malfunction indicator lamp
• Mil ctrl
• O2 snsr 1 fuse 46 10a
• O2 snsr 2 fuse 56 10a
• Odd ign/inj fuse 55 20a
• Pnk
• Pwr/trn relay 76
• Red
• Tos sig
• Transmissions system air conditioning system
• Underhood fuse block (on left side of engine compt)

6.0L VIN K, Engine Performance Wiring Diagram (3 of 5) for GMC Savana Special G3500 2008

List of elements for 6.0L VIN K, Engine Performance Wiring Diagram (3 of 5) for GMC Savana Special G3500 2008:

• (at rear of vehicle, attached to left rear frame rail) (5.3l) fuel pump flow control module
• (at top left of engine)
• (in odd ignition/coil module jumper harness, on top left side of engine)
• 5v ref
• Bare
• Computer data lines system
• Fcsm ign fuse 11 10a
• Fscm batt fuse 15 20a
• G102 (on left rear of engine)
• G300 (on left frame rail, near ebcm)
• Gmlan data
• Gnd
• Hot at all times
• Hot w/ run/ crnk relay 69 energized
• Ign volt
• Ignition coil/module 1
• Ignition coil/module 3
• Ignition coil/module 5
• Ignition coil/module 7
• J182
• J184
• J315
• Low ref
• Nca
• Pnk
• Pnk d
• Pnk pnk pnk pnk pnk pnk pnk pnk pnk
• Power distribution system
• Pump ctrl
• Red c
• Relay ctrl
• Sens sig
• Serial data
• Spark plug
• Tan
• Underhood fuse block (on left side of engine compt)

6.0L VIN K, Engine Performance Wiring Diagram (4 of 5) for GMC Savana Special G3500 2008

List of elements for 6.0L VIN K, Engine Performance Wiring Diagram (4 of 5) for GMC Savana Special G3500 2008:

• (at top right of engine)
• (in even ignition/coil module jumper harness, on top right side of engine) j185
• (on left side of intake manifold)
• (on right side of intake manifold)
• Engine oil pressure (eop) sensor (on top rear of engine)
• Fuel injector 1
• Fuel injector 2
• Fuel injector 3
• Fuel injector 4
• Fuel injector 5
• Fuel injector 6
• Fuel injector 7
• Fuel injector 8
• Fuel rail pressure (fpr) sensor
• G102 (on left rear of engine)
• Ignition coil/module 2
• Ignition coil/module 4
• Ignition coil/module 6
• Ignition coil/module 8
• J183
• J188
• Manifold absolute pressure (map) sensor (at top rear of engine, on intake manifold)
• Nca
• Pnk
• Pnk d
• Pnk pnk pnk pnk pnk pnk pnk pnk pnk
• Red c
• Spark plug
• Tan

6.0L VIN K, Engine Performance Wiring Diagram (5 of 5) for GMC Savana Special G3500 2008

List of elements for 6.0L VIN K, Engine Performance Wiring Diagram (5 of 5) for GMC Savana Special G3500 2008:

• (6.0l) camshaft position (cmp) actuator solenoid valve
• (below front of intake manifold) knock sensor (ks) 1
• (below rear of intake manifold) knock sensor (ks) 2
• (on top of engine, near throttle body) evaporative emission (evap) canister purge solenoid
• 5v ref 1
• 5v ref 2
• Camshaft position (cmp) sensor (front of engine, between water pump & crank pulley)
• Cen field sig
• Ckp sens sig
• Cmp sens sig
• Crankshaft position (ckp) sensor (on lower right rear of engine, near starter motor)
• Ect sens sig
• Engine control module (ecm) (left side of engine compt)
• Engine coolant temperature (ect) sensor (at left front of engine)
• G103 (on right rear of engine)
• Gen on sig
• Heated oxygen sensor (ho2s) bank 1 sensor 1 (in exhaust pipe, in front of catalytic converter)
• Heated oxygen sensor (ho2s) bank 2 sensor 1 (in exhaust pipe, in front of catalytic converter)
• Ho2s hi sig
• Ho2s lo ctrl
• Ho2s lo sig
• Inj 1 ctrl
• Inj 2 ctrl
• Inj 3 ctrl
• Inj 4 ctrl
• Inj 5 ctrl
• Inj 6 ctrl
• Inj 7 ctrl
• Inj 8 ctrl
• Intake sol
• J101
• Ks 1 sig
• Ks 2 sig
• Low ref
• Map sens sig
• Oil sw sig
• Pnk
• Pnk d
• Pre sens sig
• Sol ctrl
• Starting/ charging system
• Starting/charging system
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Tan
• Tan a
• Throttle body
• Tp sens 1 sig
• Tp sens 2 sig

6.6L VIN 6

6.6L VIN 6, Engine Performance Wiring Diagram (1 of 5) for GMC Savana Special G3500 2008

List of elements for 6.6L VIN 6, Engine Performance Wiring Diagram (1 of 5) for GMC Savana Special G3500 2008:

• (attached to intake manifold tube) manifold absolute pressure (map) sensor
• (attached to upper frame, near diesel oxidizing converter) exhaust pressure differential sensor
• (lower left side of engine) engine oil pressure (eop) sensor
• (on top of turbocharger) turbocharger vane position sensor
• (top right front of engine) fuel pressure regulator
• 5v ref 1
• 5v ref 2
• 5v ref 3
• A tan
• App sensor 2 sig
• Bare
• Cmp sensor sig
• Cool fan clutch ctrl
• Cool fan spd sig
• Cooling fans system
• Dpf sensor sig
• Ect sensor sig
• Egr valve sens sig
• Egt sensor sig
• Engine control module (left side of engine compt)
• Engine coolant temperature (ect) sensor (top front of engine, near thermostat housing)
• Exhaust gas recirculation (egr) temperature sensor 1
• Exhaust gas temperature (egt) sensor 1 (in exhaust, upstream of particulate filter)
• Fuel inj 3 ctrl
• Fuel inj 4 ctrl
• Fuel inj 5 ctrl
• Fuel inj 6 ctrl
• Fuel inj 7 ctrl
• Fuel inj 8 ctrl
• Fuel inj sply volt
• Fuel inj sply volt 1
• Fuel inj sply volt 2
• Fuel inj sply volt 3
• Fuel press reg sol ctrl
• G107 (left front lower side of the engine block)
• Iat sensor sig
• Intake air temperature (iat) sensor (at front of turbocharger)
• J107 red
• Low ref
• Maf sensor sig
• Map sensor sig
• Nca
• Oil level sw sig
• Oil press sig
• Pnk
• Sens 1 sply volt
• Sol ctrl
• Starter enable rly ctrl
• Starting/charging system
• Tan
• Turbo vane pos ctrl
• Turbo vane pos sens sig
• Water in fuel ind ctrl

6.6L VIN 6, Engine Performance Wiring Diagram (2 of 5) for GMC Savana Special G3500 2008

List of elements for 6.6L VIN 6, Engine Performance Wiring Diagram (2 of 5) for GMC Savana Special G3500 2008:

• (left rear of engine) glow plug control module (gpcm)
• Acc ser data
• Batt pos volt
• Bus +
• Bus -
• Computer data lines system
• Engine oil level switch (on left side of oil pan)
• G107 (left front lower side of the engine block)
• Glow plugs (glow plugs 1, 3, 5, & 7: on right side of engine) (glow plugs 2, 4, 6 & 8: on left side of engine)
• Gnd
• Hb01
• Hb02
• Hb03
• Hb04
• Hb05
• Hb06
• Hb11
• Hb12
• Hb13
• Hb14
• Hb15
• Hb16
• Hb17
• Hb18
• Hb20
• Iah comm 1
• Iah comm 2
• Iah current sig
• Iah fdbk sig
• Iah temp sig
• Iah volt sig
• Ic180
• Ic181
• Ic182
• Ic183
• Ic184
• Ic185
• Ign volt
• Intake air heater (iah) module (between the intake manifold tube & the air cooler outlet duct)
• J107 red
• Mass air flow (maf)/intake air temperature (iat) sensor (attached to air intake duct)
• Plug 1 ctrl
• Plug 2 ctrl
• Plug 3 ctrl
• Plug 4 ctrl
• Plug 5 ctrl
• Plug 6 ctrl
• Plug 7 ctrl
• Plug 8 ctrl
• Pnk
• Red
• Tan
• Water in fuel sensor

6.6L VIN 6, Engine Performance Wiring Diagram (3 of 5) for GMC Savana Special G3500 2008

List of elements for 6.6L VIN 6, Engine Performance Wiring Diagram (3 of 5) for GMC Savana Special G3500 2008:

• (at right side of turbocharger) turbocharger vane position control solenoid valve
• (in exhaust, downstream of particulate filter) exhaust gas temperature (egt) sensor 2
• (left center inner frame rail) fuel pump
• (on inner left rear frame rail) g400
• (right side of the engine above the 1 cylinder) exhaust gas recirculation (egr) valve
• (under left side of dash) accelerator pedal position (app) sensor
• B tan
• Batt pos volt
• Camshaft position (cmp) sensor (on front of engine)
• Ckp sensor sig
• Crankshaft position (ckp) sensor (next to crankshaft pulley)
• Cruise control system
• Egr 2 sply volt
• Egt sensor sig
• Engine control module (left side of engine compt)
• Frp sensor sig
• Fuel inj 1 ctrl
• Fuel inj 2 ctrl
• Fusible link 1
• Fusible link 4
• G108 (right front lower side of the engine block)
• Hot at all times
• Ign volt
• Intake air valve (attached to left side of intake housing)
• J108
• J316
• Low ref
• Nca
• Pnk
• Red
• Red pnk
• Tan
• Tcc brake sig
• Tp sens 1 sig

6.6L VIN 6, Engine Performance Wiring Diagram (4 of 5) for GMC Savana Special G3500 2008

List of elements for 6.6L VIN 6, Engine Performance Wiring Diagram (4 of 5) for GMC Savana Special G3500 2008:

• (in engine harness, between 1 & 4 fuel injectors & x107)
• (in engine harness, between 2 & 5 fuel injectors & x108)
• (in engine harness, between 3 & 8 fuel injectors & x108)
• (in engine harness, between 6 & 7 fuel injectors & x107)
• (on inner left rear frame rail) g400
• B pnk
• Bare
• Ecm batt fuse 54 10a
• Ecm ign fuse 48 15a
• Ecm pwr/ trn fuse 50 10a
• Ecm pwr/ trn fuse 65 30a
• Fuel heater
• Fuel htr fuse 4 15a
• Fuel injectors (glow plugs 1, 3, 5, & 7: on right side of engine) (glow plugs 2, 4, 6 & 8: on left side of engine)
• Fuel pump fuse 2 20a
• Fuel pump relay
• Fuel rail pressure (frp) sensor (top rear of engine)
• G102 (left front lower side of the engine block)
• G108 (right front lower side of the engine block)
• Glow plug mdl fuse 10a
• Hot at all times
• Hot in run or start
• J102
• J104
• J108
• J111
• J112
• J114
• J316
• Maf/ cnstr vent fuse 49 15a
• Pnk
• Pwr/ trn relay
• Tan
• Underhood fuse block (on left side of engine compt)

6.6L VIN 6, Engine Performance Wiring Diagram (5 of 5) for GMC Savana Special G3500 2008

List of elements for 6.6L VIN 6, Engine Performance Wiring Diagram (5 of 5) for GMC Savana Special G3500 2008:

• 5v ref 1
• 5v ref 2
• 5v ref 3
• A/c clutch rly ctrl
• A/c refrig sens sig
• A/c refrigerant pressure sensor
• Acc wake ser data
• Air conditioning system
• Anti-lock brakes system
• App sensor 1 sig
• Charge ind ctrl
• Computer data lines system
• Cooling fans system
• Ecm relay ctrl
• Egr motor low ctrl
• Egr mtr hi ctrl
• Engine control module (left side of engine compt)
• Engine oil pressure gauge
• Exhaust gas recirculation (egr) temperature sensor 2
• Fuel gauge
• Fuel level sensor (on left frame rail)
• Fuel level sensor sig
• Fuel pump rly ctrl
• Fuel rail temperature (frt) sensor (on top left side of engine)
• Fuel temp sig
• G103 (left front lower side of the engine block)
• Gen turn on sig
• Generator sig
• Gnd
• Ign volt
• Instrument panel cluster (ipc)
• J101
• J104 (in engine harness, 15 cm from x101 breakout)
• Logic
• Low engine oil pressure ind
• Low ref
• Malfunction indicator lamp
• Mil control
• Park/neutral sig
• Pnk
• Power distribution system
• Ser data bus +
• Ser data bus -
• Starting/ charging system
• Starting/charging system
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Tachometer
• Tan
• Tos sig
• Transmission system
• Vehicle speed sig
• Wait to start ind
• Wait to start ind ctrl