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C-15
Engine diagnostic parameters
: (see also chapter
C-Engine)
Engine
parameters Signification
Values expected
when engine is
OFF
Values expected when Engine is
running
RPM Engine revs 0 - Idle > 1200rpm
- WaterT<50°c : RPM limiter = 4500rpm
- 50°c
- WaterT > 100°c, rpm limiter decrease
progressively to reach 3500rpm at 120°c
VBatt (V) Battery voltage 11.5V to 12.5V > 13.5V
OilP (b) Oil pressure 0 >1.5b when engine RPM>3000
WaterT (°C) Water temp
#ambient temp when the
car is cold Water temp progressively increase to 87°c
(Water fan goes ON at low speed)
AirT (°C) Air intake temp #ambient temp when the
car is cold Air temp progressively increase when the car is
in static position
Pedal (%) Gas Pedal
potentiometer position 0 > 100% depending on
Gas pedal position 0 > 100% depending on Gas pedal position
Throttle (°) Throttle
potentiometer position <9°
(depends on water temp) 0> 100° depending on Gas pedal position
FBW Fly by wire status OK
OK
Manifold P Manifold air pressure Atmospheric pressure - Idle : Manifold P< 350mb
- When Water T >55°c Manifold P follows strictly
the BoostP (at 100% throttle)
Boost P Boost pressure Atmospheric pressure - Boost P < 1.1b when Water T <30°c
- When 30°c < Water T < 50°c => BoostP
increase progressively
- when water T > 50°c => BoostP can go to its
maximum value (2.1b)
VVT1_tg (°)
VVT1 target =
instruction sent by
ECU to the dephaser 0
If WaterT < 55°, VVT1_tg =0
As soon as WaterT>55°, VVT1_tg=100
VVT1_pos (°) Intake
camshaft pos :
depends on VVT1_tg 0 - After starting : automatic calibration (10sec)
- Then VVT1_pos = 100°
- when water T>55°, VVT1_pos must strictly
follows VVT1_tg
Fuel (L) Fuel level Fuel Level Fuel level
Fuel LP (b)
Fuel press
(measured at the
exit of the fuel cell) 0b / 5b maxi when “fuel
pump” button is pressed 4.7
Fuel HP (b) Fuel press (HP rail) <10b - 18b < fuel HP <180b
-If fuel HP < 15b during starter excitation, the
engine will not start, it’s necessary to bleed the
air inside of the rail
(see procedure in chapter
C-Engine)
Water Fan Water fan speed OFF
(depends on water temp) LOW (Low speed) when Water T >87°C
OFF when Water T <86°C
HIGH (High speed) when Water T >90°C
LOW when WaterT <88°C
See chapter
C-Engine
Turbo Fan Turbo fan OFF
(depends on Air temp) ON if Air temp is > 50°C
OFF when Air temp is <48°C
Waste Gate (%)
Waste gate duty 0
Depends on Boost pressure target
Must always be under 70%
Pop off (%) Pop off valve pos 0 (close) - 100% (open) after an complete closure of the
throttle and Boost P > 1400 mbar (to reduce the
pressure upstream to the closed throttle)
- 100% if WaterT <50°c
ID Not used
For reliability reasons and to avoid alarms risings,
it’s strongly
recommended to let the engine warm up to a water temp > 60°C
before any practising. If this condition is not respec ted, the full engine
power won’t be available.
Downloaded from www.Manualslib.com manuals search engine 98CUP_2013 Release
C-21
B.6.3.4.2 SECONDARY ALARMS (CATEGORY B)
All non Cat A alarms are classified in the category B. They are clearly displayed to the
driver, but he is still able to drive normally (the dashboard information remains normally
readable).
A message is displayed in the Area “Default”
In addition with the message displayed, the corresp onding alarm LED becomes ORANGE:
- 1 Right HS column (gearbox diagnostic)
- 1 Left HS column (engine diagnostic)
If 1 or more alarms are present, the messages are s crolling in the “default” area
B.6.3.4.3 A
LARMS AND THRESHOLD
Category Message Alarm LED Meaning Threshold
A “V BAT MIN”
+ value in Red 4 LEFT + 3 RIGHT Min. battery voltage
V batt < 11V and
revs > 4000 rpm
B “V BAT MAX”
+ value in Orange 1 Left Max. battery voltage V batt > 15V
B “OILP max”
+ value in Orange 1 Left Max. oil pressure Oil P > 6 bar
A “OILP min”
+ value in Red 4 LEFT + 3 RIGHT Min. oil pressure Oil P < 1.5 bar and
revs > 3000rpm
A “Water T Max”
+ value in Red 4 LEFT + 3 RIGHT Max. water temperature
> 105°C and
revs > 1000 rpm
B “Water T Min”
+ value in Orange 1 Left Min. water temperature <40°C and
revs > 4000rpm
B "AIR T MAX"
+ value in Orange 1 Left Max. air temperature
Air T > 90°C
revs > 1000 rpm
B “HP fuel min”
+ value in Orange 1 Left Min HP fuel pump (rail pressure) < 300 mbars and
revs > 1500 rpm
B “LP fuel min”
+ value in Red 1 Left Min LP fuel pump
< 3 bars and
revs<1000rpm
B "Throttle - def"
+ value in Blue 1 Left Electrical fault on electrical throttle pot.
-
B “Pedal - def”
+ value in Blue 1 Left Electrical fault on pedal pot -
B "Boost P/ air T - def"
+ value in Blue 1 Left Electrical fault on boost pressure / air Tem
p sensor -
Engine
alarm LED gearbox
alarm LED
