Hyundai Accent (HC): Engine Control / Fuel System

Contents:

• Specifications
• Special Service Tools
• Troubleshooting
• Engine Control System
• Fuel Delivery System

Specifications

- Specifications Fuel Delivery System

Items	Specification
Fuel Tank	Capacity	43 lit. (11.4 U.S.gal., 45.4 U.S.qt., 37.8 Imp.qt.)
Fuel Filter (built in Fuel Pump Assembly)	Type	Paper type
Fuel Pressure Regulator (built in Fuel Pump assembly)	Regulated Fuel Pressure	323 ~ 363kpa (3.29 ~ 3.70kgf/cm, 46.79 ~ 52.63 psi)
Fuel Pump	Type	Electrical, in-tank type
	Driven by	Electric motor
Fuel Retrun System	Type	Returnless

Sensors

Manifold Absolute Pressure Sensor (MAPS)

â–· Type : Piezo-resistive pressure sensor typeâ–· Specification

Pressure (kPa)	Output Voltage (V)
10.0	0.5
62.5	2.5
115	4.5

Intake Air Temperature Sensor (IATS)

â–· Type : Thermistor typeâ–· Specification

Temperature [°C (°F)]	Resistance (kΩ)
-40 (-40)	38.88 ~ 50.77
-20 (-4)	13.19 ~ 16.82
0 (32)	5.11 ~ 6.11
20 (68)	2.19 ~ 2.69
40 (104)	1.02 ~ 1.26
60 (140)	0.51 ~ 0.64
80 (176)	0.27 ~ 0.35

Engine Coolant Temperature Sensor (ECTS)

â–· Type : Thermistor typeâ–· Specification

Temperature [°C (°F)]	Resistance (kΩ)
-40 (-40)	41.74 ~ 54.54
-30 (-22)	23.54 ~ 29.94
-20 (-4)	14.13 ~ 16.83
-10 (14)	8.39 ~ 10.22
0 (32)	5.28 ~ 6.29
10 (50)	3.42 ~ 4.00
20 (68)	2.31 ~ 2.59
30 (86)	1.55 ~ 1.86
40 (104)	1.08 ~ 1.21
50 (122)	0.77 ~ 0.85
60 (140)	0.56 ~ 0.61
70 (158)	0.41 ~ 0.44
80 (176)	0.31 ~ 0.33
90 (194)	0.23 ~ 0.25
100 (212)	0.18 ~ 0.19

Throttle Position Sensor (TPS)

â–· Type : Absolute Rotary Sensor ICâ–· Specification

Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1]

â–· Type : Zirconia (ZrO2) typeâ–· Specification

Item	Resistance (Ω)
Heater Resistance (Ω)	Approx. 2.5 (20°C)

Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2]

â–· Type : Zirconia (ZrO2) typeâ–· Specification

Item	Resistance (Ω)
Heater Resistance (Ω)	Approx. 3.0 (20°C)

Camshaft Position Sensor (CMPS)

â–· Type : Hall effect type

Crankshaft Position Sensor (CKPS)

â–· Type : Magnetic field sensitive Type

Knock Sensor (KS)

â–· Type : Piezo-electricity typeâ–· Specification

Item	Specification	Remarks
Capacitance (pF)	850 ~ 1150	1 Khz
Insulation registance (MΩ)	850 ~ 1150	Pin to Body

Accelerator Position Sensor (APS)

â–· Type : Inductiv typeâ–· Specification

Items	Specification
	APS 1	APS 2
C.T	0.7 ~ 0.8	0.33 ~ 0.43
W.O.T	4.13 ~ 4.22	2.04 ~ 2.13

Fuel Tank Pressure Sensor (FTPS)

â–· Type : Piezo - Resistivity type â–· Specification

Pressure [kPa (kgf/cm², in H2O)	Output Voltage (V)
-6.67 (-0.068, -26.8)	0.5
0	2.5
+6.67 (0.068, 26.8)	4.5

Actuators

Injector

â–· Number : 8â–· Specification

Item	Specification
Coil Resistance (Ω)	11.4 ~ 12.6 [20°C (68°F)]

Purge Control Solenoid Valve (PCSV)

â–· Specification

Item	Specification
Coil Resistance (Ω)	12.5 ~ 16.5 [20°C (68°F)]

Variable Force Solenoid (VFS) [Bank 1/ Intake, Exhaust]

â–· Specification

Item	Specification
Coil Resistance (Ω)	5.2 ~ 5.9 [20°C (68°F)]
Operating Voltage (V)	10 ~ 16

Variable Intake Solenoid (VIS) Valve

â–· Specification

Item	Specification
Coil Resistance (Ω)	30.0 ~ 35.0 [20°C (68°F)]

ETC Motor

â–· Specification

Item	Specification
Coil Resistance (Ω)	1.4 ~ 1.5 [25 ± 5°C (77 ± 41°F)]

Canister Close Valve (CCV)

â–· Specification

Item	Specification
Coil Resistance (Ω)	19.8 - 20.8 (20°C)

- Service Standard

Ignition Timing	BTDC 2° ± 10°
Idle Speed	A/CON OFF	Neutral, N, P-range	630 ± 100
		D-range	630 ± 100
	A/CON ON	Neutral, N, P-range	630 ± 100
		D, R-range	680 ± 100

- Tightening Torques

Engine Control System

Item	kgf.m	N.m	lb-ft
ECM installation nuts [A/T]	1.0 ~ 1.2	9.8 ~ 11.8	7.2 ~ 8.7
ECM installation screws [M/T]	0.092 ~ 0.096	0.9 ~ 0.95	0.6 ~ 0.7
ECM bracket installation bolt	1.0 ~ 1.2	9.8 ~ 11.8	7.2 ~ 8.7
ECM bracket installation nut	1.0 ~ 1.2	9.8 ~ 11.8	7.2 ~ 8.7
Manifold absolute pressure sensor installation bolt	0.7 ~ 0.9	6.9 ~ 8.8	5.1 ~ 6.5
Engine coolant temperature sensor installation	3.0 ~ 4.0	29.4 ~ 39.2	21.7 ~ 28.9
Crankshaft position sensor installation bolt	0.8 ~ 1.2	7.8 ~ 11.8	5.8 ~ 8.7
Camshaft position sensor (Bank 1 / Intake) installation bolt	0.8 ~ 1.2	7.8 ~ 11.8	5.8 ~ 8.7
Camshaft position sensor (Bank 1 / Exhaust) installation bolt	0.8 ~ 1.2	7.8 ~ 11.8	5.8 ~ 8.7
Knock sensor installation bolt	1.9 ~ 2.5	18.6 ~ 24.5	13.7 ~ 18.1
Heated oxygen sensor (Bank 1 / Sensor 1) installation	4.0 ~ 5.0	39.2 ~ 49.1	28.9 ~ 36.2
Heated oxygen sensor (Bank 1 / Sensor 2) installation	4.0 ~ 5.0	39.2 ~ 49.1	28.9 ~ 36.2
ETC (Electronic Throttle Control) module installation bolt	1.0 ~ 1.2	9.8 ~ 11.8	7.2 ~ 8.7
CVVT oil control valve (Bank 1 / Intake) installation bolt	1.0 ~ 1.2	9.8 ~ 11.8	7.2 ~ 8.7
CVVT oil control valve (Bank 1 / Exhaust) installation bolt	1.0 ~ 1.2	9.8 ~ 11.8	7.2 ~ 8.7
Ignition coil installation bolt	1.0 ~ 1.2	9.8 ~ 11.8	7.2 ~ 8.7
Variable intake solenoid valve bracket installtion bolt	1.0 ~ 1.2	9.8 ~ 11.8	7.2 ~ 8.7

Fuel Delivery System

Item	kgf.m	N.m	lb-ft
Fuel tank installation nut	4.0 ~ 5.5	39.2 ~ 53.9	28.9 ~ 39.8
Fuel pump plate cover installation bolt	0.2 ~ 0.3	2.0 ~ 2.9	1.4 ~ 2.2
Filler-neck assembly installation bolt	0.8 ~ 1.2	7.8 ~ 11.8	5.8 ~ 8.7
Filler-neck assembly installation screw	0.8 ~ 1.2	7.8 ~ 11.8	5.8 ~ 8.7
Delivery pipe installation bolt	2.0 ~ 2.5	19.6 ~ 24.5	14.5 ~ 18.1
Delivery pipe installation nut (↔ Fuel feed tube)	0.4 ~ 0.6	3.9 ~ 5.9	2.9 ~ 4.3
Accelerator pedal installation nut	1.3 ~ 1.6	12.7 ~ 15.7	9.4 ~ 11.6
Accelerator pedal installation bolt	0.9 ~ 1.4	8.8 ~ 13.7	6.5 ~ 10.1

Special Service Tools

- Special Service Tools

Tool (Number and name)	Illustration	Application
09353-24100 Fuel Pressure Gauge		Measuring the fuel line pressure
09353-38000 Fuel Pressure Gauge Adapter		Connection between the delivery pipe and fuel feed line
09353-24000 Fuel Pressure Gauge Connector		Connection between Fuel Pressure Gauge (09353-24100) and Fuel Pressure Gauge Adapter (09353-38000)
09392-1Y100 Heated Oxygen Sensor Socket Wrench		Removal and installation of the heated oxygen sensor ※ SST No. 09392-2H100 model also can be used for removing the heated oxygen sensor.
09310-F3100 Fuel Pump Plate Cover Wrench		Removing and installation fuel pump plate cover

Troubleshooting ➤

Engine Control System ➤

Fuel Delivery System ➤