fuel cut

  1. B

    Fuel cut

    So I just had my MSP on the dyno and tuned, but it still gets fuel cut in 2nd or 3rd at about 5500 to 6000 rpm. The guy who helped me tune it said I should run stock boost, since I have stock fuel injectors, and stock internals. I only have 10psi on the engine and I know the most these engines...
  2. B

    MAP / MAF Question

    My car is hitting fuel cut at 10psi, so I went out and got a fuel cut defender from Split Second. Now the directions say to connect the wires to the MAP sensor, if you do not have a MAP sensor then it needs to be connected to the MAF sensor. Well I know for a fact that we have MAF sensors on...
  3. Y

    2003 mazda speed protege fuel cut ! Help !

    What's up everyone i just recently bought a protege speed and Love the car but its been hesitating on boost and has a hard fuel cut off at about 6,000 rpms in 2nd and 3rd gear .. Throwing codes for lean mixture and maf sensor .. Replaced maf sensor and saw no difference l.. Please someone help...
  4. A

    Vacuum/boost Issue. Fuel cut off.

    Alright so I've owned my MSP for a while now and I've slowly been trying to sort out issues with it. I just replaced all the vacuum lines with nice silicone lines andreplaced any of the factory plastic t's with larger brass t's. I have an hks bov and it just doesn't seem to open. The way I have...
  5. F

    MAF adjustment

    Hey Guys, since winter cold air has come, I am hitting fuel cut (not just the stumble) but the WHAM cut. From what I gather this comes from the MAF sensor reading 5 volts. I have also been reading into Short term and long term fuel trim (STFT LTFT) I do not like the thought of the joeP...
  6. M

    Fuel Cut = O2 Sensor?

    I've had a fuel cut problem (engine cuts power violently at high rpms/full throttle) for a while. My car recently clunked out - I turned it on and it sounded like a motorcycle - as if it was running on 2 or 3 cylinders. I towed it to a mechanic, who discovered that my exhaust was basically...
  7. U

    Car falls on it's face under WOT/full boost

    So I've never had a car act like this before and it has me stumped. When I accelerate hard and hit 10-11 psi sometimes it feels like I jabbed the brakes as hard as I could. Besides that it runs good. It started doing it when it got cold, coincidence? up for debate... What is wastegate...
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