ENGINE PERFORMANCE – Chevrolet Impala LS 2008 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

3.5L VIN K

3.5L VIN K, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Impala LS 2008

List of elements for 3.5L VIN K, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Impala LS 2008:

• (on front of automatic transaxle, left of g111) g113
• (rear of engine, mounted in exhaust manifold) heated oxygen sensor (ho2s) 1
• (top of engine) throttle body
• 5v ref
• 5v ref 1
• 5v ref 2
• Air press sens sig
• Air sol ctrl evap cnstr purge sol ctrl
• Ckp sens sig
• Ckp sig
• Cmp actr sol hi ctrl
• Cmp sens sig
• Cnstr fuse 10a
• Crankshaft position (ckp) sensor (above transaxle)
• Duty cycle sig
• Ect sens sig
• Engine control module (ecm) (inside air cleaner assembly)
• Firing order 1-2-3-4-5-6
• Fuel inj 1 ctrl
• Fuel inj 2 ctrl
• Fuel inj 3 ctrl
• Fuel inj 4 ctrl
• Fuel inj 5 ctrl
• Fuel inj 6 ctrl
• Generator turn on sig
• Gnd
• Ho2s hi sig sens 1
• Ho2s htr lo ctrl sens 1
• Ho2s lo sig sens 1
• Hot at all times
• I/p fuse block (in right front kick panel)
• Ic 1 ctrl
• Ic 2 ctrl
• Ic 3 ctrl
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition control module (icm) (top rear center of engine)
• Ks 1 sig
• Ks 2 sig
• Logic
• Low ref
• Map sens sig
• Nca
• Oil lvl sw sig
• Oil press sens sig
• Spark plugs
• Starting/ charging system
• Tac motor
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Tan
• Tp sens 1 sig
• Tp sens 2 sig
• Tps1
• Tps2

3.5L VIN K, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Impala LS 2008

List of elements for 3.5L VIN K, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Impala LS 2008:

• (center of engine
• (front lower center of engine oil pan) engine oil level switch
• (front of engine)
• (front of engine, above starter) knock sensor (ks) bank 1
• (rear of engine, below exhaust manifold) knock sensor (ks) bank 2
• (right of starter)
• 5v ref 1
• A red
• Block above timing cover)
• Camshaft position (cmp) sensor
• Camshaft position actuator solenoid
• Cmp sig
• Engine oil pressure (eop) sensor
• Fuel injector 1 (top of engine, at 1 cylinder intake port)
• Fuel injector 2 (top of engine, at 2 cylinder intake port)
• Fuel injector 3 (top of engine, at 3 cylinder intake port)
• Fuel injector 4 (top of engine, at 4 cylinder intake port)
• Fuel injector 5 (top of engine, at 5 cylinder intake port)
• Fuel injector 6 (top of engine, at 6 cylinder intake port)
• G111 (on transmission to engine bolt, above starter)
• Gnd
• Ign 1 volt
• J101
• J109
• Low ref
• Maf sens sig
• Mass air flow (maf)/ intake air temperature (iat) sensor (in air cleaner duct)
• Pnk
• Tan

3.5L VIN K, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Impala LS 2008

List of elements for 3.5L VIN K, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Impala LS 2008:

• (behind throttle body) manifold absolute pressure (map) sensor
• (in exhaust system, behind catalytic converter) heated oxygen sensor (ho2s) 2
• (in front of throttle body) evaporative emission (evap) canister purge solenoid valve
• (left side of front cylinder head) engine coolant temperature (ect) sensor
• (on left side of vehicle, near throttle body) (sulev) secondary air injection (air) pump relay
• (on left side of vehicle, near throttle body) (sulev) secondary air injection (air) solenoid relay
• (on transmission to engine bolt, above starter) g111
• (under air cleaner) a/c refrigerant pressure sensor
• Air conditioning system
• Clutch rly ctrl a/c compressor
• Computer data lines system
• Cooling fans system
• Driver information center (dic)
• Engine control module (ecm) (inside air cleaner assembly)
• Evaporative emission (evap) canister vent solenoid (behind left rear wheelhouse)
• Fan rly ctrl pwr/trn rly ctrl
• G111 (on transmission to engine bolt, above starter)
• G115 (on transmission case, below brake booster)
• Ground
• Ho2s htr
• Instrument panel cluster(ipc)
• J101
• Lo ctrl sens 2
• Lo spd cooling
• Logic
• Malfunction ind
• Mil control
• Mil ctrl
• Nca
• Pnk
• Sencondary air injection (air) pump (sulev) (near g111)
• Sencondary air injection (air) solenoid (sulev) (near ignition control module)
• Serial data gmlan lo spd
• Sol ctrl evap cnstr vent
• Tan
• Underhood fuse block (mounted to right strut x4 tower)

3.5L VIN K, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Impala LS 2008

List of elements for 3.5L VIN K, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Impala LS 2008:

• (below passenger front door opening, rear of right "a" pillar) g302
• (on transmission to engine bolt, above starter)
• 5v ref 1
• 5v ref 2
• A/c refrig press sens
• Acc wake up
• Accelerator pedal position (app) sensor (above accelerator pedal)
• Air pump fuse 60a
• Air pump rly ctrl
• Air sol fuse 15a
• App sens 1 sig
• App sens 2 sig
• App sensor 1
• App sensor 2
• Batt positive volt
• Body control module (bcm) (left of steering column)
• Coil ctrl
• Computer data lines system
• Cooling fans system
• Ecm ign fuse 10a
• Ecm/ tcm fuse 15a
• Emissions 1 fuse 15a
• Emissions 2 fuse 15a
• Engine control module (ecm) (inside air cleaner assembly)
• Etc/ecm fuse 15a
• Exterior lights system
• Fan rly ctrl
• Ftp sens sig
• Fuel lvl sens sig
• Fuel pump & sender assembly (top of fuel tank)
• Fuel pump rly ctrl
• Fuel tank pressure (ftp) sensor (inside fuel tank, part of fuel pump/ sender assembly)
• Fuel/ pump fuse 15a
• Fuel/ pump relay
• G111
• Ho2s hi sig sens 2
• Ho2s lo sig sens 2
• Hot at all times
• Iat sens sig
• Ign 1 volt
• Ign main pcb relay
• Inj 1 fuse 20a
• Inj 2 fuse 20a
• Jx207 (near steering column)
• Low ref
• Maf sens sig
• P/n sig
• Pnk
• Power distribution system
• Pwr/trn relay
• Run/crnk rly
• Serial data bus+
• Serial data bus-
• Starter rly coil ctrl
• Starting/charging system
• Stop lmp sw sig
• Tan
• Transmissions system
• Underhood fuse block (mounted to right strut tower)
• X4 serial data acc wakeup

3.5L VIN N

3.5L VIN N, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Impala LS 2008

List of elements for 3.5L VIN N, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Impala LS 2008:

• (on front of automatic transaxle, left of g111) g113
• (rear of engine, mounted in exhaust manifold) heated oxygen sensor (ho2s) 1
• (top of engine) throttle body
• 5v ref
• 5v ref 1
• 5v ref 2
• Air press sens sig
• Air sol ctrl evap cnstr purge sol ctrl
• Ckp sens sig
• Ckp sig
• Cmp actr sol hi ctrl
• Cmp sens sig
• Cnstr fuse 10a
• Crankshaft position (ckp) sensor (above transaxle)
• Duty cycle sig
• Ect sens sig
• Engine control module (ecm) (inside air cleaner assembly)
• Firing order 1-2-3-4-5-6
• Fuel inj 1 ctrl
• Fuel inj 2 ctrl
• Fuel inj 3 ctrl
• Fuel inj 4 ctrl
• Fuel inj 5 ctrl
• Fuel inj 6 ctrl
• Generator turn on sig
• Gnd
• Ho2s hi sig sens 1
• Ho2s htr lo ctrl sens 1
• Ho2s lo sig sens 1
• Hot at all times
• I/p fuse block (in right front kick panel)
• Ic 1 ctrl
• Ic 2 ctrl
• Ic 3 ctrl
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition control module (icm) (top rear center of engine)
• Ks 1 sig
• Ks 2 sig
• Logic
• Low ref
• Map sens sig
• Nca
• Oil lvl sw sig
• Oil press sens sig
• Spark plugs
• Starting/ charging system
• Tac motor
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Tan
• Tp sens 1 sig
• Tp sens 2 sig
• Tps1
• Tps2

3.5L VIN N, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Impala LS 2008

List of elements for 3.5L VIN N, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Impala LS 2008:

• (center of engine
• (front lower center of engine oil pan) engine oil level switch
• (front of engine)
• (front of engine, above starter) knock sensor (ks) bank 1
• (rear of engine, below exhaust manifold) knock sensor (ks) bank 2
• (right of starter)
• 5v ref 1
• A red
• Block above timing cover)
• Camshaft position (cmp) sensor
• Camshaft position actuator solenoid
• Cmp sig
• Engine oil pressure (eop) sensor
• Fuel injector 1 (top of engine, at 1 cylinder intake port)
• Fuel injector 2 (top of engine, at 2 cylinder intake port)
• Fuel injector 3 (top of engine, at 3 cylinder intake port)
• Fuel injector 4 (top of engine, at 4 cylinder intake port)
• Fuel injector 5 (top of engine, at 5 cylinder intake port)
• Fuel injector 6 (top of engine, at 6 cylinder intake port)
• G111 (on transmission to engine bolt, above starter)
• Gnd
• Ign 1 volt
• J101
• J109
• Low ref
• Maf sens sig
• Mass air flow (maf)/ intake air temperature (iat) sensor (in air cleaner duct)
• Pnk
• Tan

3.5L VIN N, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Impala LS 2008

List of elements for 3.5L VIN N, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Impala LS 2008:

• (behind throttle body) manifold absolute pressure (map) sensor
• (in exhaust system, behind catalytic converter) heated oxygen sensor (ho2s) 2
• (in front of throttle body) evaporative emission (evap) canister purge solenoid valve
• (left side of front cylinder head) engine coolant temperature (ect) sensor
• (on left side of vehicle, near throttle body) (sulev) secondary air injection (air) pump relay
• (on left side of vehicle, near throttle body) (sulev) secondary air injection (air) solenoid relay
• (on transmission to engine bolt, above starter) g111
• (under air cleaner) a/c refrigerant pressure sensor
• Air conditioning system
• Clutch rly ctrl a/c compressor
• Computer data lines system
• Cooling fans system
• Driver information center (dic)
• Engine control module (ecm) (inside air cleaner assembly)
• Evaporative emission (evap) canister vent solenoid (behind left rear wheelhouse)
• Fan rly ctrl pwr/trn rly ctrl
• G111 (on transmission to engine bolt, above starter)
• G115 (on transmission case, below brake booster)
• Ground
• Ho2s htr
• Instrument panel cluster(ipc)
• J101
• Lo ctrl sens 2
• Lo spd cooling
• Logic
• Malfunction ind
• Mil control
• Mil ctrl
• Nca
• Pnk
• Sencondary air injection (air) pump (sulev) (near g111)
• Sencondary air injection (air) solenoid (sulev) (near ignition control module)
• Serial data gmlan lo spd
• Sol ctrl evap cnstr vent
• Tan
• Underhood fuse block (mounted to right strut x4 tower)

3.5L VIN N, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Impala LS 2008

List of elements for 3.5L VIN N, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Impala LS 2008:

• (below passenger front door opening, rear of right "a" pillar) g302
• (on transmission to engine bolt, above starter)
• 5v ref 1
• 5v ref 2
• A/c refrig press sens
• Acc wake up
• Accelerator pedal position (app) sensor (above accelerator pedal)
• Air pump fuse 60a
• Air pump rly ctrl
• Air sol fuse 15a
• App sens 1 sig
• App sens 2 sig
• App sensor 1
• App sensor 2
• Batt positive volt
• Body control module (bcm) (left of steering column)
• Coil ctrl
• Computer data lines system
• Cooling fans system
• Ecm ign fuse 10a
• Ecm/ tcm fuse 15a
• Emissions 1 fuse 15a
• Emissions 2 fuse 15a
• Engine control module (ecm) (inside air cleaner assembly)
• Etc/ecm fuse 15a
• Exterior lights system
• Fan rly ctrl
• Ftp sens sig
• Fuel lvl sens sig
• Fuel pump & sender assembly (top of fuel tank)
• Fuel pump rly ctrl
• Fuel tank pressure (ftp) sensor (inside fuel tank, part of fuel pump/ sender assembly)
• Fuel/ pump fuse 15a
• Fuel/ pump relay
• G111
• Ho2s hi sig sens 2
• Ho2s lo sig sens 2
• Hot at all times
• Iat sens sig
• Ign 1 volt
• Ign main pcb relay
• Inj 1 fuse 20a
• Inj 2 fuse 20a
• Jx207 (near steering column)
• Low ref
• Maf sens sig
• P/n sig
• Pnk
• Power distribution system
• Pwr/trn relay
• Run/crnk rly
• Serial data bus+
• Serial data bus-
• Starter rly coil ctrl
• Starting/charging system
• Stop lmp sw sig
• Tan
• Transmissions system
• Underhood fuse block (mounted to right strut tower)
• X4 serial data acc wakeup

3.9L VIN 3

3.9L VIN 3, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Impala LS 2008

List of elements for 3.9L VIN 3, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Impala LS 2008:

• (on front of automatic transaxle, left of g111) g113
• (rear of engine, mounted in exhaust manifold) heated oxygen sensor (ho2s) 1
• (top of engine) throttle body
• 5v ref 1
• 5v ref 2
• Ckp sens sig
• Ckp sig
• Cmp actr sol hi ctrl
• Cmp sens sig
• Cnstr fuse 10a
• Crankshaft position (ckp) sensor (above transaxle)
• Ect sens sig
• Engine control module (ecm) (inside air cleaner assembly)
• Evap cnstr purge sol ctrl
• Firing order 1-2-3-4-5-6
• Fuel inj 1 ctrl
• Fuel inj 2 ctrl
• Fuel inj 3 ctrl
• Fuel inj 4 ctrl
• Fuel inj 5 ctrl
• Fuel inj 6 ctrl
• Generator field duty cycle sig oil le sw sig
• Generator turn on sig
• Gnd
• Ho2s hi sig sens 1
• Ho2s htr lo ctrl sens 1
• Ho2s lo sig sens 1
• Hot at all times
• I/p fuse block (in right front kick panel)
• Ic 1 ctrl
• Ic 2 ctrl
• Ic 3 ctrl
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition control module (icm) (top rear center of engine)
• Ks 1 sig
• Ks 2 sig
• Logic
• Low ref
• Map sens sig
• Nca
• Oil press sens sig
• Spark plugs
• Starting/ charging system
• Tac motor
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Tan
• Tp sens 1 sig
• Tp sens 2 sig
• Tps1
• Tps2

3.9L VIN 3, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Impala LS 2008

List of elements for 3.9L VIN 3, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Impala LS 2008:

• (center of engine block above timing cover) camshaft position (cmp) sensor
• (front lower center of engine oil pan) engine oil level switch
• (front of engine) camshaft position actuator solenoid valve
• (front of engine, above starter) knock sensor (ks) bank 1
• (rear of engine, below exhaust manifold) knock sensor (ks) bank 2
• (right of starter) engine oil pressure (eop) sensor
• 5v ref 1
• A red
• B ign 1 volt
• C gnd
• Cmp sig
• Fuel injector 1 (top of engine, at 1 cylinder intake port)
• Fuel injector 2 (top of engine, at 2 cylinder intake port)
• Fuel injector 3 (top of engine, at 3 cylinder intake port)
• Fuel injector 4 (top of engine, at 4 cylinder intake port)
• Fuel injector 5 (top of engine, at 5 cylinder intake port)
• Fuel injector 6 (top of engine, at 6 cylinder intake port)
• G111 (on transmission to engine bolt, above starter)
• J101
• J109
• Low ref
• Maf sens sig
• Mass air flow (maf)/ intake air temperature (iat) sensor (in air cleaner duct)
• Pnk
• Tan

3.9L VIN 3, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Impala LS 2008

List of elements for 3.9L VIN 3, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Impala LS 2008:

• (behind throttle body) manifold absolute pressure (map) sensor
• (in exhaust system, behind catalytic converter) heated oxygen sensor (ho2s) 2
• (in front of throttle body) evaporative emission (evap) canister purge solenoid valve
• (left side of front cylinder head) engine coolant temperature (ect) sensor
• (under air cleaner) a/c refrigerant pressure sensor
• Air conditioning system
• Barometric pressure (baro) sensor (top of engine)
• Brake booster vacuum sensor (at brake booster)
• Clutch rly ctrl a/c compressor
• Computer data lines system
• Cooling fans system
• Driver information center (dic)
• Engine control module (ecm) (inside air cleaner assembly)
• Evaporative emission (evap) canister vent solenoid (behind left rear wheelhouse)
• G111 (on transmission to engine bolt, above starter)
• Ground
• Instrument panel cluster (ipc)
• Lo ctrl sens 2 ho2s htr
• Lo spd cooling fan
• Logic
• Malfunction ind
• Mil control
• Mil ctrl
• Nca
• Pnk
• Rly ctrl pwr/trn rly ctrl
• Serial data lo spd gmlan
• Tan
• Underhood fuse block (mounted to right strut x4 tower)
• Vent sol ctrl evap cnstr

3.9L VIN 3, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Impala LS 2008

List of elements for 3.9L VIN 3, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Impala LS 2008:

• (below passenger front door opening, rear of right "a" pillar) g302
• (on i/p harness, near steering column) jx207
• 5v ref 1
• 5v ref 2
• A/c refrig press sens
• Above starter)
• Acc wake up
• Accelerator pedal position (app) sensor (above accelerator pedal)
• App sens 1 sig
• App sens 2 sig
• App sensor 1
• App sensor 2
• Baro sens sig
• Batt positive volt
• Body control module (bcm) (left of steering column)
• Brk booster vac sig
• Coil ctrl
• Computer data lines system
• Cooling fans system
• Ecm ign fuse 10a
• Ecm/ tcm fuse 15a
• Emissions 1 fuse 15a
• Emissions 2 fuse 15a
• Engine control module (ecm) (inside air cleaner assembly)
• Etc/ecm fuse 15a
• Exterior lights system
• Fan rly ctrl
• Fuel lvl sens sig
• Fuel pump & sender assembly (top of fuel tank)
• Fuel pump rly ctrl
• Fuel tank press sens
• Fuel tank pressure (ftp) sensor (inside fuel tank, part of fuel pump/ sender assembly)
• Fuel/ pump fuse 15a
• Fuel/ pump relay
• G111 (on transmission to engine bolt,
• Ho2s hi sig sens 2
• Ho2s lo sig sens 2
• Hot at all times
• Iat sens sig
• Ign 1 volt
• Ign main pcb relay
• Inj 1 fuse 20a
• Inj 2 fuse 20a
• Low ref
• Maf sens sig
• P/n sig
• Pnk
• Power distribution system
• Pwr/trn relay
• Run/crnk rly
• Serial data bus+
• Serial data bus-
• Starter rly coil ctrl
• Starting/charging system
• Stop lmp sw sig
• Tan
• Transmissions system
• Underhood fuse block (mounted to right strut tower)
• X4 serial data acc wakeup

5.3L VIN C

5.3L VIN C, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Impala LS 2008

List of elements for 5.3L VIN C, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Impala LS 2008:

• (below throttle body) engine oil pressure (eop) sensor
• (lower left rear of engine block) knock sensor (ks) bank 1
• (rear of engine, below exhaust manifold) knock sensor (ks) bank 2
• 5v ref 1
• 5v ref 2
• A tan
• Camshaft position (cmp) sensor (in timing cover, to left of water pump pulley)
• Ckp sens sig
• Ckp sig
• Cmp sens sig oil press sens sig
• Cmp sig
• Crankshaft position (ckp) sensor (at end of crankshaft, behind harmonic balancer)
• Engine control module (ecm) (inside air cleaner assembly)
• Fuel inj 1 ctrl
• Fuel inj 2 ctrl
• Fuel inj 3 ctrl
• Fuel inj 4 ctrl
• Fuel inj 5 ctrl
• Fuel inj 6 ctrl
• Fuel inj 7 ctrl
• Fuel inj 8 ctrl
• G111 (on transmission to engine bolt, below starter)
• Gnd
• Gnd c
• Heated oxygen sensor (ho2s) 1 (rear of engine, mounted in exhaust manifold)
• Heated oxygen sensor (ho2s) 2 (in exhaust system, behind catalytic converter)
• Ho2s ctrl sens 1
• Ho2s ctrl sens 2
• Ho2s sig sens 1
• Ho2s sig sens 2
• Iat sens sig
• 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 1 volt
• Ign 1 volt b
• J101
• Ks 1 sig
• Ks 2 sig
• Low ref
• Maf sens sig
• Maf sens sig a
• Mass air flow (maf)/ intake air temperature (iat) sensor (in air cleaner duct)
• Nca
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Tan
• Throttle body (top of engine)
• Tp sens 1 sig
• Tp sens 2 sig

5.3L VIN C, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Impala LS 2008

List of elements for 5.3L VIN C, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Impala LS 2008:

• (left of steering column) body control module (bcm)
• (on i/p harness, near steering column) jx206
• (on i/p harness, near steering column) jx207
• Batt
• Computer data lines system
• Display fuse 10a
• Distribution power
• Driver information center (dic)
• Ecm ign fuse 10a
• Ecm/ tcm fuse 15a
• Emissions 1 fuse 15a
• Emissions 2 fuse 15a
• Etc/ecm fuse 15a
• Fuel injector 1 (top of engine, at 1 cylinder intake port)
• Fuel injector 2 (top of engine, at 2 cylinder intake port)
• Fuel injector 3 (top of engine, at 3 cylinder intake port)
• Fuel injector 4 (top of engine, at 4 cylinder intake port)
• Fuel injector 5 (top of engine, at 5 cylinder intake port)
• Fuel injector 6 (top of engine, at 6 cylinder intake port)
• Fuel injector 7 (top of engine, at 7 cylinder intake port)
• Fuel injector 8 (top of engine, at 8 cylinder intake port)
• Fuel/ pump relay
• Fuel/pump fuse 15a
• G111 (on transmission to engine bolt, below starter)
• Hot at all times
• Ign main pcb relay
• Inj 1 fuse 20a
• Inj 2 fuse 20a
• Instrument panel cluster (ipc)
• J108
• J109
• Logic
• Malfunction ind
• Mil ctrl
• Pnk
• Pwr/trn relay
• Serial data lo spd gmlan
• System
• Tan
• Underhood fuse block (mounted to right strut tower)

5.3L VIN C, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Impala LS 2008

List of elements for 5.3L VIN C, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Impala LS 2008:

• (top of engine, at 1 cylinder) ignition coil 1
• (top of engine, at 2 cylinder) ignition coil 2
• (top of engine, at 3 cylinder) ignition coil 3
• (top of engine, at 4 cylinder) ignition coil 4
• (top of engine, at 5 cylinder) ignition coil 5
• (top of engine, at 6 cylinder) ignition coil 6
• (top of engine, at 7 cylinder) ignition coil 7
• (top of engine, at 8 cylinder) ignition coil 8
• 5v ref 1
• 5v ref 2
• A/c compressor
• Acc wake up serial data
• Air conditioning system
• App sens 2 sig
• Batt positive
• Brk booster
• Clutch rly ctrl fan rly ctrl
• Coil ctrl
• Cooling fans system
• Engine control module (ecm) (inside air cleaner assembly)
• Evap cnstr
• Evaporative emission (evap) canister vent solenoid (behind left rear
• Ftp sens sig
• Fuel lvl
• Fuel pump
• G113 (on front of automatic transaxle, left of g111)
• Ign 1 volt
• J105 (in engine wiring harness, 5.5 cm from breakout to starter)
• J106
• J107
• J130
• J131
• J132 (on ignition control module wiring harness)
• J133
• Low ref
• Mil ctrl
• Nca
• Plug spark
• Pnk
• Pwr/trn
• Red
• Rly ctrl
• Sens sig
• Spark plug
• Starter
• Starting/ charging system
• Stop lp sw sig
• Tan
• Underhood fuse block (mounted to right strut x1 tower)
• Vacuum sig app sens 1 sig
• Vent sol ctrl
• Volt
• Wheelhouse)

5.3L VIN C, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Impala LS 2008

List of elements for 5.3L VIN C, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Impala LS 2008:

• (below passenger front door opening, rear of right "a" pillar) g302
• (left front of engine at cylinder 1) engine coolant temperature (ect) sensor
• (on intake manifold, near fuel injectors) evaporative emission (evap) canister purge solenoid valve
• (on throttle body) manifold absolute pressure (map) sensor
• (on transmission to engine bolt, below starter)
• (under air cleaner) a/c refrigerant pressure sensor
• (under throttle actuator control (tac) module) valve lifter oil manifold (vlom) assembly
• 5v ref 1
• 5v ref 2
• A/c refrig press sens sig
• Accelerator pedal position (app) sensor (above accelerator pedal)
• B tan
• Brake booster vacuum sensor (at brake booster)
• Cnstr fuse 10a
• Computer data lines system
• Cooling fans system
• Cycle sig
• Cylinder shutoff solenoid 1
• Cylinder shutoff solenoid 2
• Cylinder shutoff solenoid 3
• Cylinder shutoff solenoid 4
• Ect sens sig
• Engine control module (ecm) (inside air cleaner assembly)
• Engine oil level (eol) switch (bottom of oil pan)
• Evap sol ctrl
• Fan rly ctrl
• Fuel level sensor
• Fuel pump
• Fuel pump & sender assembly (top of fuel tank)
• Fuel tank pressure (ftp) sensor (inside fuel tank, part of fuel pump/ sender assembly)
• G111
• Generator turn on sig
• Hot at all times
• I/p fuse block (in right front kick panel)
• J101
• Lamp sw sig
• Low ref
• Map sens sig
• Oil lvl sw sig
• Park/neutral
• Serial data bus+
• Serial data bus-
• Sol ctrl 1
• Sol ctrl 2
• Sol ctrl 3
• Sol ctrl 4
• Starting/ charging system
• Starting/charging system
• Tan
• Transmission control module (tcm) (left side of engine compt in with air cleaner)
• Transmissions system
• Vss