Recent content by KJMS3

  1. KJMS3

    Misfire Under Heavy Load Only

    Ok well that sounds like some goodish news that at least my motor may not be shitting the bed. But yeah it’s been a long almost 8 months now of chasing this miss and I’m starting to lose it lol. I’m at a point where I wanna be done throwing money at this and I don’t wanna take it to a shop...
  2. KJMS3

    Misfire Under Heavy Load Only

    Got the plugs from O’Reillys, and yeah all the porcelain stayed in the socket so it didn’t get down into the cylinder.
  3. KJMS3

    Misfire Under Heavy Load Only

    Would’ve had this posted yesterday but weather didn’t permit me to work. Just finished up with the leak down test and it ain’t looking good unfortunately. All cylinders tested about 3-4% leak down except cylinder 3 at about 18%. Pic and vid attached While taking out the plug for Cyl 3, the...
  4. KJMS3

    Misfire Under Heavy Load Only

    No I get my plugs from o’reilleys, I hope they’re not selling fakes lol. No I don’t have my oil coil packs anymore, I tossed them when I got the new ones. When I get that leak down tester and do that next week probably on Tuesday, I’ll take a look at the wiring harness to the coils and see if...
  5. KJMS3

    Misfire Under Heavy Load Only

    To me it smelled like any other car when you take the cap off while it’s running, and no smoke or anything like that. Though I have noticed sometimes when topping off the oil after driving, and letting it sit for maybe 10ish mins before adding my oil, there will be a very small, faint amount of...
  6. KJMS3

    Misfire Under Heavy Load Only

    @Crazycanadian i have my catch can/PCV routed exactly like the CS instructions found here. As for the miss, I did have some mods to the car when it started, those being HPFP, the graveyard injectors, CS injector o rings and seals, CS 2.5” ram intake, CS 50/50 BOV, CS 80mm catback and test pipe...
  7. KJMS3

    Misfire Under Heavy Load Only

    Yes, it all vents to the intake which is why I thought the pressure vibration was normal. So is it possible I’m lucky enough to not have had drama blow my shit up? Like would it be worth it to try getting a tune from someone actually worth a shit or would I just be throwing more money away at...
  8. KJMS3

    Misfire Under Heavy Load Only

    Even with the other side of the PCV system blocked off? The barb on the intake manifold is blocked off (as per CS catch can install instructions) and the PCV valve hose (that’d normally go into the intake manifold) is tee’d into that valve cover hose before they both go into the catch can. I...
  9. KJMS3

    Misfire Under Heavy Load Only

    Maybe I got the wrong hose then bc you’re saying it’s on the intake after throttle body which could only be the manifold. The one I pulled off is on top of the valve cover, towards the driver side of the car, and from factory would go to the intake on the turbo inlet. Since I have a catch can...
  10. KJMS3

    Misfire Under Heavy Load Only

    @Enki I pulled that hose off while it was running like you said. No excessive blowby or vacuum. Seemed to me like the PCV system was working completely normally. Held a piece of paper up near it and it started vibrating from the PCV valve doing its job. I would think this points to normal?
  11. KJMS3

    Misfire Under Heavy Load Only

    Oh it definitely won’t, I love speed3s and I’d love to take the time to use this as an opportunity to build the motor and do something more wild with it, but I just don’t have the time or funds rn with refreshing my turbo Miata. Plus its my daily so I can’t have it down for more than a weekend
  12. KJMS3

    Misfire Under Heavy Load Only

    Dammit, I was really hoping it wasn’t gonna be looking like anything major. I’ll do that test with the valve cover breather tomorrow after work and report back with what I can only hope will be good findings. If not, guess I’m selling it for a better home since I don’t have time for that mess rn :(
  13. KJMS3

    Misfire Under Heavy Load Only

    I’m in central Cali, and no it started around August 2025. The tune that was on the car when it first started was competed around January or February 2025 if I recall correctly, but the car was just fine through the worst of summer here in June and July before the miss started, and it didn’t get...
  14. KJMS3

    Misfire Under Heavy Load Only

    Was on the same tune from there for 7 months before the misfire started happening, if it was the tune wouldn’t it have started right when I got the tune?
  15. KJMS3

    Misfire Under Heavy Load Only

    Hello everyone, I'm new here so I'll give a small intro here before I get into it. My name's Keelen, I'm 22 years old and I've had my 2008 Mazdaspeed 3 for a little over a year and a half now. Bought it with around 196000 miles on it bone stock, now with almost 212000 miles, and it was treating...
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