Multiple CEL help

[stang305]

Can anyone help. I have a 15 gt procharged with 10 k miles been boosted for 5 k miles just got all these codes when WOT I’ve been boosted for 2 years no issue

Anyone come across this ? Thanks

P0300 (random/multiple cylinder misfire detected)

p0301 cylinder 1 misfire

p0306 cylinder 6 misfire

p115e (throttle actuator control throttle body air flow trim at max limit)


Mods in sig

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[GT Pony]

Possibly the intake runner flapper valves not opening properly.

https://www.mustang6g.com/forums/threads/p0300-how-to-check-imrc.127267/