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VOLVO

Engine management

Model:

S/V40 1,6/1,8/1,9/2,0/Turbo/1,9 TD • 850 2,5 TDI
S/V70 2,5/2,5 TDI (-08/98)

Volvo type

EFI-556

EFI-611

EFI-612

EFI-614

EFI-616

EFI-621

EFI-666

EFI-711

EFI-712

EFI-713

EFI-714

EFI-715

EFI-716

EFI-717

EFI-718

EFI-719

EFI-721

EFI-724

EFI-725

EFt-726

EFI-730

EFI-732

EFI-733

EFI-742

EFI-743

EFI-751

EFI-752

EFI-761

EFI-762

Fault location

Cylinder 6, misfire detected - TWC damage

Fuel tank system - large leak detected

Fuel tank system - small leak detected

Evaporative emission (EVAP) canister shut-off valve —
incorrect flow detected

Evaporative emission (EVAP) canister shut-off valve -
signal

Fuel tank pressure sensor

Transmission control module (TCM) - access fault
memory

Injector needle lift sensor

Fuel temperature sensor

Fuel Injection timing solenoid

Fuel shut-off solenoid

Fuel quantity - incorrect flow detected

Fuel quantity adjuster

Fuel quantity adjuster position sensor

Injection timing control

Injector needle lift sensor - engine speed signal

Glow plug waming tamp

Engine coolant heater relay

Engine control (EC) relay

Engine control module (ECM) - supply voltage

Brake pedal position (BPP) switch

Accelerator pedal position (APP) sensor - signal

Accelerator pedal position (APP) sensor - supply
voltage

Transmission control module (TCM) - communication
en-or

Cruise control master/selector switch

Glow plug relay 1

Glow plug relay 2

Glow plugs 1 & 3

Glow plugs 2 & 4

Probable cause

Spark plug, HT lead, distributor rotor/cap, moisture
ingress, injector/wiring, air leak, compression, head
gasket, low-tension wiring, repeated cold starts
(flooding)

Fuel tank, filler cap/pipe, EVAP system, fuel tank
pressure sensor

Fuel tank, filler cap/pipe, EVAP system, fuel tank
pressure sensor

Hose blocked, EVAP canister shut-off valve/filter,
EVAP canister purge valve, fuel tank pressure
sensor

Wiring, EVAP canister shut-off valve

Wiring, sensor supply, G-force sensor, AC pressure

sensor, fuel tank pressure sensor

Trouble code(s) stored

Wiring, injector needle lift sensor

Wiring, fuel temperature sensor

Wiring, fuel Injection timing solenoid

Wiring, fuel shut-off solenoid

Wiring, fuel quantity adjuster

Wiring, fuel quantity adjuster/position sensor

Wiring, fuel quantity adjuster position sensor

Fuel injection timing circuit

Engine overheated, injector needle lift sensor

Wiring, glow plug warning lamp

Wiring, engine coolant heater relay, engine coolant
heater wiring

Wiring, engine control (EC) relay

Wiring, engine control (EC) relay

Brake pedal depressed for more than 3 minutes,
wiring, BPP switch

Wiring, APP sensor

Wiring short to earth, excessive load, ECM

Wiring, TCM. ECM

Wiring, cruise control master/selector switch

Wiring, glow plug relay

Wiring, glow plug relay

Wiring short to earth, glow plug(s)

Wiring short to earth, glow plug(s)

Engi/ie management