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  1. Misfire on Startup & Constantly Dead Battery

    It was in prior position before issue was found.
  2. Misfire on Startup & Constantly Dead Battery

    SOLVED Update: I tore the entire car apart. From unbolting fuse boxes to checking the harness itself, it was simple. The alternator power wire has grounded itself to the block. Therefore, causing the misfires as well as over 1V drain, resulting in a dead battery within seconds. It has since...
  3. Misfire on Startup & Constantly Dead Battery

    Well, after now having been nearly a month and having no time to further diagnose the car, I'm still unsure as to what it may be. Apologies for getting back here so late. For those wondering, the battery was bought new over this past summer. I have tested for parasitic draw, which came back at...
  4. Misfire on Startup & Constantly Dead Battery

    Okay - will do this when I get home. Still doesn't help my multiple cylinder misfire on start though. Best way to diagnose that? Plugs again?
  5. Misfire on Startup & Constantly Dead Battery

    I gotcha. Still looks like a pain and that's my last resort option. I'll do plugs again for the misfire before tearing apart the car. Any other idea on why it would be constant misfire on start and then go away whilst driving? Just doesn't make sense to me. Popped up at random. Wonder if it's...
  6. Misfire on Startup & Constantly Dead Battery

    Once started, the car holds 14.6-7 just fine. It's when it sits it get to just below voltage to start the car. Not dead enough to make the dreaded click, but it turns over for 2-3 seconds and then nothing.
  7. Misfire on Startup & Constantly Dead Battery

    Charge to what? 14.5? Then take it off and let it sit overnight and if it goes below 12.5 it's the battery?
  8. Misfire on Startup & Constantly Dead Battery

    This was previously my thought, but the chances of two batteries dying back to back - you'd have a better chance at winning the lottery, no?
  9. Misfire on Startup & Constantly Dead Battery

    Why did you have to replace yours? I don't feel like blowing $300 on a sensor and the install more importantly for it to not matter at all.
  10. Misfire on Startup & Constantly Dead Battery

    I have not performed the BMS reset. I will try that. I took a multi-meter to it and the battery read 11.3, just enough to not start it and reset "MyMode", guages, etc. It varies, however, as it has been 10.5 as well. When started, it shoots immediately back to 14.6-7. I have also read on KAM...
  11. Misfire on Startup & Constantly Dead Battery

    Afternoon all, I've been having issues with the car in the past few months and was just wondering if anyone had any insight as to what's going on here. I believe it is all tied together in some way. So, on the dead battery front, the car is randomly dying. It has died as fast as sitting at the...
  12. Lambda2 Reading 0?

    Good afternoon all, I have recently had some reoccurring issues with my Lambda2 reading 0, or off. It does this at random times, regardless of weather, gas, etc. It stopped for around a month, as the car had been sitting, but recently started again. This happens during driving, flashing on and...
  13. Clutch/Flywheel screeching on takeoff & under acceleration

    I did my fair share of both rev-matching, more so than naturally slowing the car down. I knew these aluminum shift forks on the MT-82's are glass, but have never once heard someone having an issue with the clutch, only 3rd gear lockout regarding that in general. SO, lets assume it is the...
  14. Clutch/Flywheel screeching on takeoff & under acceleration

    Indeed that is correct, although, it only makes 500 wheel and should easily handle the power. I've never heard of an issue with a stock clutch going out, only them being real crappy. Also, when I say downshift "normally," I simply mean the obvious clutch in down a gear, clutch out, in order to...
  15. Clutch/Flywheel screeching on takeoff & under acceleration

    Good evening all, My car, a 2019 PP1, has just recently, at 14k miles, began to make a screeching noise under acceleration. I have had issues in the past, as the clutch would make a whining sound as I downshift normally, not rev-matching. I am unsure as to if this is a flywheel issue, and it...
  16. PO61B Code Thrown

    I have been having this code thrown multiple times after a cat-less header install. I’ve taped up and zip tied the rear 02 sensors out of the way. I extended the passenger side harness to reach and spliced the driver side. My thought was to get the rear 02’s to read oxygen instead of being...
  17. Michigan Roush cat back and mak cat delete

    I’d love to take those cat deletes off of you, if you decide to sell separately. PM me if you go that route. Thanks! GLWS.
  18. ISO: O/R Mid-Pipes for 2019 Mustang GT

    I’m looking for a pair of O/R Mid-Pipes - Preferably BBK. The goal is to match these up with Longtubes. Just out of curiosity, has anyone welded a pipe in instead of buying said Mid-Pipes? Thanks in advance for any help or offers!
  19. Looking to buy Longtube Headers

    I’m looking for some advice along with a pair of Longtubes for my 2019 GT. I’ve been looking into 2M Fab Longtubes (aka eBay headers) and was wondering if someone had them used before I bought new. Also, I looked into Speed Daddy as well, and was wondering if 3” is worth for an N/A application...
  20. 3rd gear is a squeeling noise while downshifting

    It's around 3-4k, I use "high rpms" loosely. It's normal for sporty driving.





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