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INJECTION
OPERATING PHASES : BOSCH ME 7.9.5 INJECTION SYSTEM
Display of faults
The engine diagnosis warning lamp lights up if there is a fault on any of
the following components or types of information :
Control of the variable valve timing electrovalve
Inlet air temperature sensor
Engine coolant temperature sensor
Motorised butterfly signal (1,2)
Heating of the upstream oxygen sensor
Heating of the downstream oxygen sensor
Richness regulation
Command of injector for a given cylinder (1,2,3)
Ignition misfiring, cylinder undetermined
Ignition misfiring for a given cylinder (1,2,3)
Knock sensor signal
Engine speed sensor signal
Camshaft sensor
Ageing of the catalytic converter
Vehcle speed sensor signal
Idle stepper motor signal
Supply of sensors
Battery voltage too low
Battery voltage too high
Brake switch signal (MMT gearbox)
Inlet manifold pressure sensor
Signal internal to the ECU
Control of the motorised butterfly (MMT gearbox)
Jamming of the motorised butterfly (MMT gearbox)
Position of the motorised butterfly (MMT gearbox)
Incoherent information coming from the accelerator pedal sensor (MMT
gearbox)
Accelerator pedal position sensor signal (1,2) (MMT gearbox)
Absence of communication with the immobiliser control module
Engine : CFA
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