VTCS delete relay install

Discussion in 'Mazdaspeed 3 General Discussion' started by Haxir, May 9, 2023.

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  1. Brandon S

    Brandon S Greenie N00B Member

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    I’m assuming I just need to tune it out ?
     
    Brandon S, via an iPhone, Aug 25, 2023
    #21
  2. Easter Bunny

    Easter Bunny Professional Engineer Motorhead Platinum Member

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    you have something not connected correctly from removing the intake manifold, that is the cause of your fuel trim change

    the VTCS controller box only needs to be connected to the wiring harness and have full range of movement to not trigger a CEL

    Edit: you know that you can just edit a post to add more info instead of making four posts in 10 minutes
     
  3. Brandon S

    Brandon S Greenie N00B Member

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    Hey guys one last update the fuel trim seems to be leaving out. I talked to my tuner the trim issue is definitely the intake or injectors but I’m still in spec at idle. About the Vtcs the best thing to do is just connect everything back together maybe minus the button connected to the plunger. And just zip tie the button down. It’d just make it think it’s open and not throw the code
     
    Brandon S, via an iPhone, Aug 26, 2023
    #23
  4. jjabaj

    jjabaj Greenie N00B Member

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    Hey guys, hate to revive this thread again, Im also in this predicament of dealing with the vtcs. I wired the starter kill relay and it killed my starter lol. Just had to plug the ground back in on the starter and replace a fuse then the car was back to normal. It did what it was supposed to do lmao. I reread where you said to SWAP the wires on the solenoid connector for the diagram on the relay? Im waiting on getting a vtcs box and plunger at the moment. Does the red wire (from the relay) connect to black red (vtcs solenoid) and black (from the relay) to green black( vtcs solenoid)?
     
    jjabaj, via an iPhone, Aug 29, 2023
    #24
  5. thirsk66

    thirsk66 Greenie N00B Member

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    I’m having the same issue got a vtcs delete relay and no matter how I wire it up I have the code p2006 or p2010. Any help with this would be appreciated. I have all the parts still left on my manifold the black vacuum box and the solenoid that attaches to it. I’m stumped on this one. I’m wondering if I’m missing something.
     
    thirsk66, via an iPhone, Feb 18, 2024
    #25
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