misfire

  1. WarrenBoostit

    Which of these two likely caused a misfire?

    Today, I was planning on cleaning out my cold air intake filter, and I noticed my hot side PCV valve was making a vibrating noise. It was an easy swap for a new valve and hose, and I installed (what I thought) was a now clean and oiled filter. This is my first time attempting to clean a filter...
  2. marshallma0504

    Need advice before I possibly mess up my SHO

    Hello all, I have a 2013 SHO non PP with 116,000 miles that I am about to embark on a rather long road trip with, and I want to do some preventative maintenance before I leave. Some backstory, I picked the car up on marketplace for a good deal, it’s clean inside and is a rebuild with some panel...
  3. Shadow351

    Temporary Misfire and Pending Low Fuel Rail Pressure Code

    So I was stuck in traffic on my way home from work today and started getting a misfire/shake/flashing MIL/low power episode. Luckily, the car did not stall and leave me stranded in the middle of the roundabout and there really wasn't a good place to stop so I limped it along in traffic, but then...
  4. Trevor_42

    Possible cylinder 6 misfire

    Hi there! I recently purchased a 91 sho not to long ago, and I’m having a misfire problem. Sometimes when I start the car I have no power and I could be flooring the gas, and the rpms barely climb up past 1-2k, and other times it’s fine. We replaced the cognition coil but that doesn’t seem to...
  5. M

    Help with misfires!

    Hey all, Long time lurker first time poster. This forum has saved my butt so many times so hopefully it can now! To start I drive a 2010 sho non pp with 105k miles. Stock except for drilled rotors. So I am experiencing a nasty misfire. It's always there on the highway if I try to accelerate...
  6. usvet101st

    92 SHO bulking, sputtering

    New to the SHO lifestyle. I bought this car over a month ago. Did spark n wire swap, thermostat swap(with a failsafe to be on the safe side) didn't had any issues with it. Last week coming from school it started sputtering/misfiring. Got it towed home. This past Sunday I swap the cam sensor...
  7. M

    2016 Non PP Random Misfire Issues -- Check Engine Light -- Help Please

    Hello Everyone, I need help getting my non-PP SHO back up to its normal self again. Below is a summary of the events and the error codes: Flashing CE light under WOT or when accelerating and trying to pass a vehicle P0300 --> Random Misfire Detected P0301 --> Cylinder #1 Misfire...

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