Engine Control System - 5.0L: Diagnosis Hyundai Genesis I рестайлинг

ECM Problem Inspection Procedure

1. TEST ECM GROUND CIRCUIT: Measure resistance between ECM and chassis ground using the backside of ECM harness connector as ECM side check point. If the problem is found, repair it. Specification: Below 1ohms
2. TEST ECM CONNECTOR: Disconnect the ECM connector and visually check the ground terminals on ECM side and harness side for bent pins or poor contact pressure. If the problem is found, repair it.
3. If problem is not found in Step 1 and 2 , the ECM could be faulty. If so, replace the ECM with a new one, and then check the vehicle again. If the vehicle operates normally then the problem was likely with the ECM.
4. RE-TEST THE ORIGINAL ECM: Install the original ECM (may be broken) into a known-good vehicle and check the vehicle. If the problem occurs again, replace the original ECM with a new one. If problem does not occur, this is intermittent problem (Refer to "Intermittent Problem Inspection Procedure" in Basic Inspection Procedure).

Inspection

1. Connect the GDS on the Data Link Connector (DLC).
2. Measure the output voltage of the MAPS at idle and IG ON. Specification: Refer to " «SPECIFICATION»(ref-591759-S02971695172014010600000) "

Scheme 379

1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2. Disconnect the manifold absolute pressure sensor connector (A).
3. Remove the installation bolt (B), and then remove the sensor from the surge tank.

1. Connect the GDS on the Data Link Connector (DLC).
2. Measure the output voltage of the MAPS at idle and IG ON. Specification: Refer to " «SPECIFICATION»(ref-591759-S13262022122014010600000) "

1. Turn the ignition switch OFF.
2. Remove the ECTS (Refer to " «REMOVAL»(ref-591759-S39258644652014010600000) ").
3. After immersing the thermistor of the sensor into engine coolant, measure resistance between the ECTS terminals 1 and 2.
4. Check that the resistance is within the specification. Specification: Refer to " «SPECIFICATION»(ref-591759-S31492808182014010600000) "

Scheme 380

1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2. Disconnect the engine coolant temperature sensor connector (A), and then remove the engine coolant temperature sensor (B).
3. Supplement the engine coolant (Refer to " «ENGINE COOLANT REFILLING AND BLEEDING»(ref-591745-S35242420862014010600000) " in EM group).

1. Check signal waveform of CKPS and CMPS using a GDS. Specification: Refer to " «WAVEFORM»(ref-591759-S17054785912014010600000) "

Scheme 381

Scheme 382

1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2. Disconnect the crankshaft position sensor connector (A).
3. Remove the sensor (B) after removing the installation bolt (A).

1. Check the signal waveform of the CMPS and CKPS using the GDS. Specification: Refer to " «WAVE FORM»(ref-591759-S17054785912014010600000) "

1. Turn the ignition switch OFF.
2. Disconnect the HO2S connector.
3. Measure resistance between the HO2S terminals 3 and 4.
4. Check that the resistance is within the specification. Specification: Refer to " «SPECIFICATION»(ref-591759-S14953790082014010600000) "

Scheme 383

1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2. Disconnect the heated oxygen sensor connector.
3. Lift the vehicle.
4. Remove the heater protector (B) from the catalytic converter after removing the bolt (A).
5. Remove the heated oxygen sensor (C) with the spanner after lifting the heater protector (B).

Scheme 384

1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2. Disconnect the heated oxygen sensor connector (B).
3. Lift the vehicle.
4. Remove the heated oxygen sensor (A).

Scheme 385

Scheme 386

1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2. Lift the vehicle.
3. Disconnect the heated oxygen sensor connector (A).
4. Remove the heated oxygen sensor (B). [Bank 2/Sensor 1] [Bank 2/Sensor 2]

1. Connect a scantool on the Data Link Connector (DLC).
2. Turn the ignition switch ON.
3. Measure the output voltage of the APS 1 and 2 at C.T and W.O.T. Specification: Refer to «SPECIFICATION»(ref-591759-S12623588242014010600000) Section.

1. Connect the GDS on the Data Link Connector (DLC).
2. Measure the output voltage of the RPS at idle and various engine speed. Condition Output Voltage (V) Idle Approx. 1.2 1, 500 rpm 2.2 ~ 2.5 6, 300 rpm Approx. 3.0

Scheme 387

1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2. Release the residual pressure in fuel line (Refer to " «RELEASE RESIDUAL PRESSURE IN FUEL LINE»(ref-591760-S06245557012014010600000) " in this group). CAUTION: When removing the fuel pump relay, a Diagnostic Trouble Code (DTC) may occur. Delete the code with the GDS after completion of " «RELEASE RESIDUAL PRESSURE IN FUEL LINE»(ref-591760-S06245557012014010600000) " work.
3. Remove the intake manifold (Refer to " «INTAKE MANIFOLD»(ref-591747-S35223431112014010600000) " in EM group).
4. Disconnect the rail pressure sensor connector (A), and then remove the sensor (B) from the delivery pipe.

1. Connect the GDS on the Data Link Connector (DLC).
2. Measure the output voltage of the FTPS. Specification: Refer to " «SPECIFICATION»(ref-591759-S27375325892014010600000) "

Scheme 388

Scheme 389

1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2. Remove the fuel pump service cover (A).
3. Disconnect the fuel tank pressure sensor connector (A).
4. Remove the fuel tank pressure sensor after remove the installation botl (B).

1. Turn the ignition switch OFF.
2. Disconnect the injector connector.
3. Measure resistance between the injector terminals 1 and 2.
4. Check that the resistance is within the specification. Specification: Refer to " «SPECIFICATION»(ref-591759-S32287517932014010600000) "

1. Turn the ignition switch OFF.
2. Disconnect the PCSV connector.
3. Measure resistance between the PCSV terminals 1 and 2.
4. Check that the resistance is within the specification. Specification: Refer to " «SPECIFICATION»(ref-591759-S23950201442014010600000) "

Scheme 390

1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2. Disconnect the purge control solenoid valve connector (A).
3. Disconnect the vapor hoses (B) from the purge control solenoid valve.
4. Remove the valve after removing the bolt (C).

1. Turn the ignition switch OFF.
2. Disconnect the OCV connector.
3. Measure resistance between the OCV terminals 1 and 2.
4. Check that the resistance is within the specification. Specification: Refer to " «SPECIFICATION»(ref-591759-S21222014192014010600000) "

Scheme 391

1. Turn ignition switch OFF and disconnect the negative (-) battery cable.
2. Disconnect the CVVT oil control valve connector (A-Intake) and (B-Exhaust).
3. Remove the mounting bolt, and then remove the valve from the engine.

Scheme 392

1. Turn ignition switch OFF and disconnect the negative (-) battery cable.
2. Disconnect the CVVT oil control valve connector (A-Intake) and (B-Exhaust).
3. Remove the mounting bolt, and then remove the valve from the engine.

1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2. Disconnect the fuel pressure regulator valve connector.
3. Measure resistance between the fuel pressure regulator valve terminals 1 and 2.
4. Check that the resistance is within the specification. Specification: Refer to " «SPECIFICATION»(ref-591759-S35866230212014010600000) "

1. Turn the ignition switch OFF.
2. Disconnect the CCV connector.
3. Measure resistance between the CCV terminal 1 and 2.
4. Check that the resistance is within the specification. Specification: Refer to " «SPECIFICATION»(ref-591759-S36474229212014010600000) "
5. Disconnect the vapor hose connected with the canister from the CCV.
6. Connect a vacuum pump to the nipple.
7. Ground the CCV control line and apply battery voltage to the CCV power supply line.
8. Apply vacuum and check the valve operation. Specification: Vacuum maintained

Scheme 393

Scheme 394

1. Turn the ignition switch OFF and disconnect the negative (-) battery cable.
2. Remove the service cover (A).
3. Disconnect the canister close valve connector (A).
4. Disconnect the vapor hose (B) from the canister.
5. Remove the installation bolt.
6. Remove the canister close valve from the fuel tank air filter.