Fuel rail pressure sensor reading 0 volts at all times.

Discussion in 'Mazdaspeed 3 Troubleshooting' started by Matt Dickey, Nov 28, 2021.

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  1. Matt Dickey

    Matt Dickey Greenie Member

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    Yeah to my knowledge over 180k and i checked thoroughly for boost leaks before i put the intake back on just to cover all bases before i started it for the first time with the new injectors. But ill check again. I had it tuned with the bad injectors and was fighting a slightly lean at WOT issue for a while and Will kept throwing fuel at it. So im assuming the injectors are just maybe way more efficient than the others so the ecu is pulling back on the fuel. And sorry those fuel trims i referred to are negative.
     
    Matt Dickey, via an iPhone, Dec 6, 2021
    #61
  2. Matt Dickey

    Matt Dickey Greenie Member

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    Yeah to my knowledge over 180k and i checked thoroughly for boost leaks before i put the intake back on just to cover all bases before i started it for the first time with the new injectors. But ill check again. I had it tuned with the bad injectors and was fighting a slightly lean at WOT issue for a while and Will kept throwing fuel at it. So im assuming the injectors are just maybe way more efficient than the others so the ecu is pulling back on the fuel. And sorry those fuel trims i referred to are negative.
     
    Matt Dickey, via an iPhone, Dec 6, 2021
    #62
  3. JohnnyTightlips

    JohnnyTightlips Motorhead Silver Member

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    I have re-used CS seals about 4 times without issue. You will want your mafcal touched up if you had a bad injector as it can only compensate so much. I would let you tuner know this and see what they can do for you. Glad you are making some progress.
     
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  4. Matt Dickey

    Matt Dickey Greenie Member

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    well the car feels amazing. it dosnt buck super hard when i let off the throttle anymore it seems like driveability in general is just alltogether smoother in every way. the power feels EXTREMELY linear and it feels like it just pulls hard all the way up now. funny thing though my recirculation valve hose was plugged so the car was venting to atmosphere and it made my fuel trims crazy. -20 to -24 i put the hose on and the trims immediatly dropped and all day they have been +/- 3% max.
     
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  5. Duey1083

    Duey1083 Greenie Member

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    Glad you got it all sorted!
     
    Duey1083, via a Samsung mobile device, Dec 6, 2021
    #65
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