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Marc_R33

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Posts posted by Marc_R33

  3. Nissan Skyline R33 GTST OBD Fusion Vehicle Speed

    in G4+

    Posted

    Hi,

    ok, everything is set up, it is mapped with 2 maps, runs like a dream, I hooked up an OBD device, Android Radio with cool display of parameters, using OBD Fusion App, i can say i got far in the last weeks.

    ONE thing bothers me. How do I define the vehicle speed ? I read in this forum but dont get it somehow. The GTST has a vehicle speed signal on PIN 53 on the factory ECU. And a tacho speed signal on PIN 7. It is AUX 4 on the Link.

    I look into the Aux 4 in the Link Software it says Tacho, Label not defined. Aha. 

    How do I get a speed signal into my Android system or at least into the Link Software ? I choose vehicle speed in the OBD FUsion PIDs nothing shows. So somehow the OBD Fusion doesnt recognize the AUX 4 Tacho as vehicle speed I assume ... I am stuck somehow. 

     

    IMG_7441.jpeg

  4. Nissan Skyline R33 GTST Wiring IAT Boost Wideband

    in G4+

    Posted

    The timing is locked to 10, I adjusted the offset, everything is fine.

    The timing delay I can set to 0 ms, confirm with enter, and still gives me 25 degrees advance with increasing RPM. I tried two scope tools. But I do use the loop at the end of the valve cover since I thought it may not be as accurate as taking it between the coil and sparkplug, but still with the loop it should not show an advance in timing. No ? 

    It is stock coils, stock ignition on Rb25DET S1.

  5. Nissan Skyline R33 GTST Wiring IAT Boost Wideband

    in G4+

    Posted

    Hi, thanks, that worked well. Adjusted everything and Lambda shows accurate values.

    Now I have a problem with Trigger setup. I did the setup, corrected the timing offset, the timing is ok. Stored in ECU, all is well.

     

    But now. I left ignition delay at 80 ms as pre-configured on the base map. I scoped and I have ignition advance with increasing RPM. I set it to 0. It says in the help window see how the ignition retards with increasing RPM. It does not. It advances the same amount. I see no difference between 0 and 100 ms. 

    I do press enter to confirm the change just like on the timing offset. The timing goes toward 25 deg. BTDC, then i reduce RPM again.

    Any ideas ?

     

     

     

     

  6. Nissan Skyline R33 GTST Wiring IAT Boost Wideband

    in G4+

    Posted

    Ok. The IAT is connected and shown on Temp 3. MAP sensor check. TPS calibrated check. I defined AN Volt 8 as 0-5 V and named it Wideband Sensor.

    I dont get how the system recognizes this 0-5 V signal as Wideband signal. It must be linked somehow ?

    I purchased the online learning from HPA, but I am so impatient, maybe someone has a tip how the wideband signal is integrated in the system and recognized.

    thanks. 

  8. Nissan Skyline R33 GTST Wiring IAT Boost Wideband

    in G4+

    Posted

    Hi,

    I am a newbie and appreciate your help. If this is to be found with using search I apologize, I somehow sidnt find all the answers.

     

    I have a R33 GTST S1 Nissan Skyline and a Link G4+ ECU. 

    1)  A friend recommended using a "Race" Pierburg solenoid for wastegate control. Can I connect this to the OEM wiring, meaning I keep ECU Pins 25 / 26 for that ? Is an aftermarket solenoid needed at all, with stock turbo I stay in the range of 0.85 bar max, why do I need a new solenoid for that ? The stock one manages this with a boost controller fairly well .

    2) Regarding Wideband sensor. I have a bosch sensor, which plugs to a module outputting an analog signal 0-5 V. It is three cables, ground, wideband, narrowband. With the expansion loop, can I just add this to ground / AN Volt 8 ? 

    3 ) for IAT, I just add that to the expansion loop as wenn for ground / Temp 1 ?

     

    Thank you,

    Marc

     

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