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Engine: Fiat Coupe 2,0 16V Turbo

- Displacement: 1995ccm

- Bore: 84mm

- Stroke: 90mm

- Cilinders: 4 in line

- Firing order: 1-3-4-2

- Distribution: by belt, DOHC (2 cams in head)

- Rotation: right

- Wasted Spark ignition

- Multi point indirect injection


Tuned parts:

- Turbocharger: Garrett GT3076R, (external wastegate), assumed pressure appp. 1-1,5 bar

- Bigger throttle body: Diameter: 70mm

- NA camshafts (same timing, bigger lift)

- Exhaust manifold: tubular type

- Bigger IC

- Bigger injectors


Sensors (which are used in my project):

- Crankshaft (Trigger 1): VR type, 60-2 teeth

- Throttle position sensor (TPS): Bosch 0 280 122 001

- Water temperature sensor (WT):

-type: negative temperature NTC (appr. 2252 Ohm at 25C)

-mark: Bosch 0 280 130 026

-impedance at -10C = 9 kOhm

-impedance at +20C : 2,5 kOhm

-impedance at +80C : 0,3 kOhm

-voltage: 5V

- Intake Air Temperature sensor (IAT):

-type: negative temperature NTC (appr. 2252 Ohm at 25C)

-mark: Bosch 0 280 130 060 ( from Lancia Kappa 2,0 16V Turbo)

-impedance at -10C = 9 kOhm

-impedance at +20C : 2,5 kOhm

-impedance at +80C : 0,3 kOhm

- Manifold Absolute Pressure sensor (MAP):

-VEMS internal MAP sensor (On-Board)

-Max. pressure: 400 kpa

- WBO2 Lambda sensor: Wideband LSU 4.9,

Bosch 0 258 017 025

Measured Rcal: 85 Ohm = calibration 149,4

(When did free air calibration, value was 144)

- Exhaust Gas Temperature sensor (EGT):

type: VEMS, 6mm


Actuators:

- Ignition: wasted spark type with 2 coils

Coils: Marelli BAE 800B (060708038010) (Fiat Punto,Coupe, Lancia Delta,Thema,Y,...)

-Primary coil resistance: 0,54 Ohm

-Secondary coil resistance: 7500 Ohm

(dwel set to 3ms)

-Spark plugs: NGK BP6ET (3 electrodes in circle)

- Injection: Injectors type: Peak & Hold

Number of injectors: 4

Resistance of 1 injector: 2,5 Ohm @ 68F (did you verify by measurement ?)

Siemens DEKA FI11445, 750 cc/min @ 43,5 PSI

Why not using high impedance injector instead ? Plenty available between 700..870cc/min, even from Siemens.

Wiring:

injA EC36/7 cyl1

injB EC36/19 cyl2

injC EC36/8 cyl4

injD EC36/20 cyl3

-Fuel pressure: 3 bar

- Boost Control Valve: for this time Manual Boost controller is used

- Idle valve: OEM type, PWM one coil


Used VEMS controller:

v3.8

ING OUT: 4x IGBT + 4x logic level

MAP: Internal 400kPa

EGT: 1

Prim.Tr.: VR

Sec.Tr.: Hall

internal nernst pull up for LSU 4.9

wbo2 pump pw zero: 100

wbo2 nernstdc target 134

egt1 cal: 72

batt cal: 190

INJ OUT: Flyback: low Voltage flyback (OBSOLETE)

converted to 30V flyback by installing [30V unidir transient diode] in the harness:

Vems%20transient%20diode.jpg

1k5E30 diode is used.