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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.
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C-22
B " Manifold P - def"
+ value in Blue 1 Left Electrical fault on manifold sensor -
B "Oil P - def"
+ value in Blue 1 Left Electrical fault on oil pressure sensor -
B
"Water T - def"
+ value in Blue 1 Left Electrical fault on water temperature sensor -
B
“Throt FBW * def”
+ value in blue 1 Left Electrical fault on motorised throttle
B
“High press def”
+ value in Blue 1 Left High pressure sensor default -
B
“Low press def”
+ value in Blue 1 Left Low pressure sensor default -
B
" V.V.T.1 - def"
+ value in Blue 1 Left Intake V.V.T. servo control default difference > 10°
between VVT1_tg and VVT1_pos during more than 5s
B “GB actuator - def”
+ value in Blue 1 Right Gearbox actuator default
(only if connected) -
B "GB Pot - def"
+ value in Blue 1 Right Electrical default on barrel position senso
r -
B “up contact – def”
+ value in Blue 1 Right Electrical default on upshift contactor -
B “Solenoid R”
+ value in Blue 1 Right Electrical default on reverse solenoid (barrel
unlocking) -
B "CBNT - Can Def" - CAN CBNT fault -
B "Steering - def" - Major/minor fault on power ste
ering module -
“Gear” - Gear button pressed, message displayed in the
middle of the screen without alarm
"Pit Limiter" - Speed limiter enabled, message displayed on the top of the screen without alarm
-
B.6.4 BASIC PROCEDURES
B.6.4.1 Power-up
Press the “ON” button of the facia switch panel
(See B.6.1) to power supply the vehicle
The “COSWORTH” home page appears when the dashboard display first comes on, and
then moves to the first driver page (RACE Page)
B.6.4.2 Starting
Once the vehicle’s electrics are on, flick the vehi cle's “IGNITION” switch to the up (ON)
position.
Check that no gear is engaged (the letter “N” is di splayed on one of the display screen’s
driver pages).
Press on the “START” button without touching the Gas Pedal
The vehicle will only start if the following elect ronic equipments are connected
and are working properly:
- ECU
- CBNT
- Master relay
It is possible to start without plugging the dashbo ard
NOTE :
For the first engine start after engine refitting, it’s necessary to bleed the fuel
rail. To make it properly, please follow carefully the procedure indicated in chapter C-
Engine
