Service Data and Specifications (S.D.S.) - General Specifications / Inspection and Adjustment (SR)
EF & EC-730spec tableSR20DE and SR20DET engines. Specs differ between SR20DE and SR20DET.
General Specifications
Pressure Regulator - Fuel pressure at idling
Vacuum hose is connected
kPa (bar, kg/cm2, psi)Approximately 245 (2.45, 2.5, 36)
Vacuum hose is disconnected
kPa (bar, kg/cm2, psi)Approximately 294 (2.94, 3.0, 43)
Inspection and Adjustment
Idle speed / Ignition timing / Throttle sensor
Idle speed*2 - No-load*2 (in "N" position)
Unitrpm
SR20DE850 ± 50
SR20DET925 +25 -75
Idle speed - Air conditioner: ON (in "N" position)
Unitrpm
SR20DE850 ± 50
SR20DET925 +25 -75
Ignition timing
Unit
SR20DE15° ± 2° B.T.D.C.
SR20DET20° ± 2° B.T.D.C.
Throttle sensor idle position
UnitV
SR20DE0.45 - 0.55
SR20DET0.45 - 0.55
NOTE
*1: Feedback controlled and needs no adjustments. *2: Under the following conditions: Air conditioner switch: OFF; Electric load: OFF (Lights, heater, fan & rear defogger).
Fuel Pump
Resistance
UnitΩ
ValueApproximately 0.7
A.A.C. Valve
Resistance
UnitΩ
ValueApproximately 10.0
Injector
Resistance
UnitΩ
SR20DE10 - 14
SR20DET1 - 3
Resistor
Resistance
UnitkΩ
ValueApproximately 2.2
Throttle Sensor
Completely released
Resistance kΩApproximately 2
Partially released
Resistance kΩ2 - 11
Completely depressed
Resistance kΩApproximately 11
Ignition Coil
Primary voltage
UnitV
Value12
Primary resistance [at 20°C (68°F)]
UnitΩ
ValueApproximately 1.0
Secondary resistance [at 20°C (68°F)]
UnitkΩ
ValueApproximately 10.0
Air Flow Meter
Supply voltage
UnitV
ValueBattery voltage (11 - 14)
Output voltage
UnitV
ValueSR20DE: 1.3 - 1.8* / SR20DET: 1.0 - 1.5*
NOTE
*: Engine is warmed up sufficiently and idling under no-load.
Engine Temperature Sensor
20 (68)
Resistance kΩ2.1 - 2.9
50 (122)
Resistance kΩ0.68 - 1.00
80 (176)
Resistance kΩ0.30 - 0.33