A mileage of about 125,000 km, equipped with G4ED (CVVT technology) 1.6L EFI engine 2008 Beijing Elantra sedan. The car appeared engine fault lights lit, driving power decreased significantly, normal driving easy to turn off, 100 km fuel consumption increased more than 2L fault.
The engine uses a KTAG KESS BDM adapter full set continuously variable valve timing system (only change the valve phase, cannot change the valve lift), referred to as the CV-VT system. CVVT system consists of VVT oil control valve, VVT oil filter, VVT actuators and other sensors, ECU and other components. The VVT oil filter supplies oil to the VVT oil control valve through the cylinder head oil passage. The engine control module ECU controls the spool ktag V7.020 EU valve VVT oil control valve according to the BDM ADAPTER engine speed, load and other parameters and advances the oil to the valve timing of the VVT actuator VVT actuators directly Vpecker E4 Phone diagnosis change the phase of the exhaust camshaft according to the supplied hydraulic pressure and indirectly change the phase of the intake camshaft through the chain to make the intake valve timing continuous Variety.
Fault diagnosis: First, with Beijing Hyundai-specific HI-DS SCANER fault diagnostic code read, read the fault code two: P0118, P0012. The meaning of fault code P0118 is that the coolant temperature sensor signal voltage is high. The sensor is a three-wire, 2 # BDM terminal connected to the dashboard; # 1 terminal for the signal line, the engine ECU # 77 terminal; # 3 terminal for the ground wire, connected to the engine ECU 35 # terminal. Remove the cooling water temperature sensor into a water-filled beaker (put a thermometer) and heated with a Vpecker E4 APP electric furnace to measure the change of the resistance value between 1 # terminal and 3 # terminal with temperature, and the measured values are shown in Table 1.
ECU tunners will take advantage of this new BDM adapter full set which has 22pcs in total(contains Marelli Bosch Siemens... ).
A photo of all these adapters :
BDM Probe adapters list:
1 14AM00T01M Bosch
2 14AM00T02M Delphi DCM
3 14AM00T03M Bootloader ST10xx
4 14P600KT04 Infineon Tricore EDC/MED17
5 14AM00T05M Marelli MPC55xx JTAG
6 14AM00T06M Delphi MPC55xx JTAG
7 14AM00T07M Denso CN1 Boot
8 14AM00T08M Denso CN2 Boot
9 14AM00T09M Denso CN3 Boot
10 14AM00T10M Denso CN1 AUD
11 14AM00T11M Denso CN2 AUD
12 14AM00T00M Delphi DCI
13 14AM00TBAS Base Adapter 1.27
14 14AM00T14M NexusEFI T6 Lotus
15 14AM00TB02 Magneti Marelli BDM insert
16 14AM00TB01 Siemens BDM insert
17 14AM00TB03 EDC7 BDM insert
18 14AM00T18M Magneti Marelli MPC/SPC56xx
19 14AM00T13M Nexus MPC5xx TRW ECU
20 VAG 1.6tdi - Siemens-Continental PCR2.1
21 14AM00T15M Toyota NEC76F-20
22 14AM00T16M Toyota NEC76F-26
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Full BDM adapters work on:
KTM
Trasdata
The signal circuit of the cooling water temperature sensor is detected, the ignition switch is turned off, the Vpecker E4 Android phone cooling water temperature sensor connector is separated; the ignition switch is set to "ON" and the voltage between the sensor harness connector 1 # V. The above-mentioned sensor resistance measurement and signal circuit measurement showed no abnormality, indicating that the cooling water temperature sensor is normal, and the fault of the vehicle should not be related to the cooling water temperature sensor.
Fault code P0012, the meaning of Ktag V7.020 EU version which is "A" When the timing delay of the camshaft position is too large, under the condition of diagnosis, the difference between the initial target angle and the actual angle is more than 3 "and 10 times or more, and the ECU records the fault code. Vehicle failure to check as follows:
0VVT oil control valve inspection. Measure the resistance of VVT oil control valve at room temperature to 7.4Ω, normal value from 6.9 to 7.9Ω, within normal range. Connect fault diagnostic unit with ignition switch "ON" and "actuator" Check "function Check VVT oil control valve, to hear the solenoid valve" clicks ". The above inspection shows that the VVT oil control valve is normal.
When removing the filter VVT Ktag ECU BDM oil filter, the filter was found to contain many colloidal impurities. The VVT oil control valve operates normally but the oil pressure to the VVT actuator is insufficient due to the many colloidal impurities adhering to the VVT oil filter strainer, causing the actual valve timing advance and valve timing of the intake valve When the lag angle is more than BDM Adapters the initial target angle, the engine ECU memorizes the trouble code P0012. Remove the Ktag V7.020 valve cover found that there are more coke.
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