I can't get an obd2 scanner to connect 2005 Tucson 2.0 please help.

Discussion in 'Hyundai Tucson' started by bobby, Feb 25, 2024.

  1. bobby


    Feb 25, 2024
    Likes Received:
    I recently overhauled my 2005 Tucson 2.0 G4GC.
    Its starts and runs I have done 2500km/1500mi since the overhaul but I feel it lacks a bit of power and the fuel consumption can still improve.

    I suspect a sensor and would love to clear all engine codes

    I have tested pin 7 on the obd2 port from what I understand from other post is that pin 7 is the K-Line I have 9.9V

    I have bought 3 different scanners :
    ELM327 Bluetooth Basic OBDII Car Diagnostic Scanner
    HHOBD ELM327 Bluetooth Vehicle diagnostic scanner
    KW808 OBD2 EOBD Automotive Scanner Automotive
    All of them did get power from the OBD2 and connected to the phone or seemed to work correctly except none of them was able to connect to the ECU.
    Please help
    I have found this other "DIAGNOSIS" port inside the engine compartment. but have no idea what it is.
    bobby, Feb 25, 2024
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