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HELP 2015+ S550 engine code p0300,p0325,p0330

Sean4m

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Hi guys other day was driving my car (2015 mustang gt premium) normally not beating on it shifting below 3000rpm and I noticed the check engine light came on. Codes read

P0300- multiple random misfires detected on multiple cylinders
P0325- knock sensor 1 circuit bank 1
P0330- knock sensor 2 circuit bank 2

I immediately got home and popped my hood, there was no ticking or knocking of any sort sounded healthy, car was still running absolutely fine no issues, checked what my knock sensor value was the max and min was from 0.00 too -4.67. So no positive knock was detected. I was driving in the rain and thought maybe car freaked out after a big puddle or something I have a open element cai. Cleared codes kept an eye on the car. Been daily driving it for the last 11 days nothing had ever came back on car was driving fantastic. Was driving home same scenario last night not ripping on it light came on and the same codes popped up. Looking for some suggestions on what too do. Car is still running perfect no audible knock and knock sensor had no positive reading. Tomorrow I will be buying new plugs and a compression tester. Heard faulty plugs can cause p0300, doubt they have ever been changed have owned the car for 4 month, in terms of the knock sensor codes I have no idea.

Cars milage: 65000

mods:
boss 302 intake manifold
Borla atak catback
Sr performance cold air intake
Tune 93 octane performance tune from auto mafia racing out of Florida

Thank you any recommendations or help on where too start is greatly appreciated.
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Sean4m

Sean4m

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*I will add this is about 6 days after putting on my intake manifold and loading my tune on.
 

Torched10

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Hi guys other day was driving my car (2015 mustang gt premium) normally not beating on it shifting below 3000rpm and I noticed the check engine light came on. Codes read

P0300- multiple random misfires detected on multiple cylinders
P0325- knock sensor 1 circuit bank 1
P0330- knock sensor 2 circuit bank 2

I immediately got home and popped my hood, there was no ticking or knocking of any sort sounded healthy, car was still running absolutely fine no issues, checked what my knock sensor value was the max and min was from 0.00 too -4.67. So no positive knock was detected. I was driving in the rain and thought maybe car freaked out after a big puddle or something I have a open element cai. Cleared codes kept an eye on the car. Been daily driving it for the last 11 days nothing had ever came back on car was driving fantastic. Was driving home same scenario last night not ripping on it light came on and the same codes popped up. Looking for some suggestions on what too do. Car is still running perfect no audible knock and knock sensor had no positive reading. Tomorrow I will be buying new plugs and a compression tester. Heard faulty plugs can cause p0300, doubt they have ever been changed have owned the car for 4 month, in terms of the knock sensor codes I have no idea.

Cars milage: 65000

mods:
boss 302 intake manifold
Borla atak catback
Sr performance cold air intake
Tune 93 octane performance tune from auto mafia racing out of Florida

Thank you any recommendations or help on where too start is greatly appreciated.
Do a Google search.heres what I found

https://www.mustangecoboost.net/threads/codes-p0300-p0316-w-cobb-tune.22264/
 
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Sean4m

Sean4m

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just for a update the shop that installed my boss intake manifold left the knock sensor unplugged for bank 1 and 2 so that explains the codes for those. I am getting positive and negotiate knock values. In first gear it spikes fit a millisecond from zero too 6.00 degrees then instantly back too zero and I get 0.00 too negatige -6 degrees of knock in all other gears. Could not having the knock sensors plugged in cause the car too throw a misfire code? Also the knock is inconsistent sometimes it’s 0 degrees others it’s 3 or 6 or 1.5 very random almost sounds like false knock in first.
 
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Did you ever resolve this one? I'm just finding this string but have had the exact same issues for well over a year. Knock sensor codes are almost immediate. Misfire codes come up whenever I get it up over about 6,200rpm
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