Misfire Issue help!

[TOXIC_S650]

So been driving my 2024 GT Premium for over a year and a half, no issues. It had about 3700 miles and I installed a new racing clutch and short throw shifter last month in preparation for my supercharger install coming up later this month. After these two were put in, my car shakes in first gear and my engine light flashes. Took it back to ford and they said its due to a 4 and 7 cylinder misfire. After diagnosing, they said due to the misfires, the engine is putting itself into 4 cylinder mode which will cause shaking. It's definitely running on 4 cylinders because all of my power is gone. Its been a month and a half and they said there is nothing they can do, but the supercharger tune will fix it so not to worry about it. Was never a problem before I installed the new clutch and shifter. Anyone heard of this and have any suggestions? Will the supercharger tune fix it? Thanks.

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[robvas]

4 cylinder mode?

 

[S650sunshine]

So been driving my 2024 GT Premium for over a year and a half, no issues. It had about 3700 miles and I installed a new racing clutch and short throw shifter last month in preparation for my supercharger install coming up later this month. After these two were put in, my car shakes in first gear and my engine light flashes. Took it back to ford and they said its due to a 4 and 7 cylinder misfire. After diagnosing, they said due to the misfires, the engine is putting itself into 4 cylinder mode which will cause shaking. It's definitely running on 4 cylinders because all of my power is gone. Its been a month and a half and they said there is nothing they can do, but the supercharger tune will fix it so not to worry about it. Was never a problem before I installed the new clutch and shifter. Anyone heard of this and have any suggestions? Will the supercharger tune fix it? Thanks.

Idk if ford telling the truth with the 4 cylinder mode thing. Did you install the mods yourself? Idk this issue tbh.

 

[dusman59]

Do you need to do a crank shaft relearn? I know this was almost needed on earlier Mustangs when installing a new clutch.

 

[MAT1955]

Start with the fact that you changed the car that was running fine and work out who did what to your Mustang.

 

[dusman59]

You definitely need a relearn. Missfires and limp mode happen when the crank sensor is disturbed.

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