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Hks Bov Sqv Came Off R33 Gtst

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    • Gram
      Rb25det neo issue tps voltage

      By Gram · Posted

      hey GTSboy thanks for the quick reply. im on stock ECU  Surprisngly enough i unplug everything and replug everything, readings are still off but the car drove...ok haha So far this is what i have done. - Replaced ECU (still 1.5v) - Replaced Boost sensor (still 1.5v) Now the next thing i tried is to unplug the TPS and only plug in the Boost sensor to see if it reads 5v. No it still only read 1.5v.  Its a new boost sensor and i know i have 5v if i dont plug the sensor back in, so that means the power wire is good. So now im thinking that it might be a bad ground on the boost sensor plug.  on the FSM says the ground to the boost sensor is  a sensor ground, can i add a ground wire from the boost sensor ground wire to the the engine itself to ground it? or chassis?
    • GTSBoy
      Rb25det neo issue tps voltage

      By GTSBoy · Posted

      OK, so, assuming that there is nothing wrong with either the original or new boost sensor, then it would seem that there might be something wrong in the loom wiring to that sensor. This is troublesome, because if that were true, then you might expect the problem to persist when the sensor was unplugged. But seeing as the voltage comes good when it is unplugged, it would suggest that the fault might (and I stress might) be right at the loom plug. Either that, or the fault might be at the ECU, on the line in from the boost sensor. When you unplug the boost sensor, that input at the ECU is isolated from the TPS sensor and can't affect it. This would be semi-bad, as an ECU problem is never welcome, but at least you'd know where the problem is and it might be fixable, or at least replaceable. Do you have Nistune, or any other way of looking at ECU data? I'd want to drive the car around with the boost sensor unplugged and see the TPS working properly, then not working properly with the sensor plugged back in. You're not trying to run more than ~18 psi either? Right? Because even with Nistune that can be difficult with the boost sensor connected. Just checking, in case it might have some bearing on the issue. It shouldn't cause the voltage situation you're seeing though.
    • The Bogan
      My BMW 335i

      By The Bogan · Posted

      Need something reliable, like a Mazda (non-rotary), or a Honda, or a .......... Commodore 🤣, the only issue with my cars is me 🫤
    • PranK
      Like loud exhausts? You could be a psychopath.

      By PranK · Posted

      Definitely a psychopath. 
    • PranK
      MLR's Bogan cruise ship

      By PranK · Posted

      Then sell it and buy a BMW! I can totally relate to this (except the money part! ). I think for me I need to remind myself that I do enjoy the process and to stop being so damn impatient and eager to get it done. That just leads to frustration and broken stuff.  Built not bought. Wait.  Fixed, not fought? No ... Definitely fighting things. Definitely not fixed, I give up. Cars are pain.  
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