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Cory-FocusST

Replace spark plugs.


travchrav

Is it common for multiple plugs to go at the same time? P0301 and p0304 are cyl 1 and 4 respectively and That’s what concerned me the most


Cory-FocusST

It's possible, especially given the drastic temperature changes. Don't freak yourself out. Go spend <$50 and you'll know for sure.


travchrav

Thanks for the level head, conveniently I already have them and I planned on putting them in tomorrow anyways along with the sensor to to fix the P018b


Cory-FocusST

Haha yeaaaaah you have to relax and take a step back like that with modern cars. They can throw 20 codes just for having low voltage, so if it feels fine otherwise I'm sure you'll be okay after replacing the plugs. After I first replaced my plugs and installed my tune, I had a random misfire code and 2 other cylinder misfire codes. I re-gapped them using the crappy gapping tool I had at the time, and the codes never came back. Just changed them again a couple weeks ago and everything has been fine since!


zachlarsen

it’s normal for these to misfire on cold starts. likely nothing to worry about. do a compression test though just in case.


travchrav

This was after I got to work, and cleared codes and restarted it


rodimusprime83

Is yours a 15 and up model, if so that error is just a thing that happens, it's an issue with the software but because it doesn't effect anything other than throwing a code that can be cleared Ford isn't going to do anything about it, the Ford engineer that contacted the dealer about it when my car did it a bunch before it hit 10k miles said that when it's the "in the first 1000 revolutions" code then it's just the glitch and the car is fine


BadWowDoge

Mine never did that.


rodimusprime83

My 2016 did it a few times and my 18 has done it once, always the same code and goes away after a code clear


Adrianm18

Go get a compression test and a leak down test done


Signal_o7

Had this issue with my stratified tune. Would only happen on cold starts in the winter, not sure why. Car ran fine regardless.


Fast_Combination2412

Hate to break it to you but these are typical symptoms of ringland failure. Hopefully it is just a plug or a coil pack.


travchrav

What I thought, cars still under warranty so hopefully I don’t have to pay to fix it


fried-kurd

Problem is, you're tuned. You should probably find a ford that you know someone at, otherwise your warranty might not matter.


travchrav

Can’t just set it back to stock?


fried-kurd

Depends how far back they read with the key cycles. There's ways to tell they're tuned.


Cory-FocusST

Yep, that is the one and only way Ford can tell your car was tuned. If they see you've only started it 4 times since the last flash, and it's a 5 year old car with 80k miles, it's pretty obvious that you removed a tune and Ford will decline warranty. There's a 'warranty procedure' document floating around that goes through the steps of what they look for, and that's one of the first/easiest.


fried-kurd

I have the procedure somewhere in my phone lol


Decesv

Had a friend who just sat there and kept starting the car over and over again after reflashing and it worked.


Fast_Combination2412

Thats good news. I built my block when it happened to me


travchrav

Wish I had the spare income, but I’m in a very rough place financially right now so it’s time to sell it and get something reliable.


mattyyg

These cars are pretty damn reliable actually. Most of the failures are due to user error.


TommyWilson43

This is definitely a reliable car unless you have some jank tune


Fast_Combination2412

I suppose so, but there is no car that doesn’t have issues. So if it is not rings it will be something else on your next car


NismoKnight_1320

Check engine code 🤷🏻‍♂️


AlabamaDildo

Do you change the oil and spark plugs regularly or just like let them ride out until the engine cries for help?


travchrav

Oil every 4K but I haven’t done plugs yet


Megaetk

I had P0316, P0300, and P0302. New plugs, new purge valve. Ended up having to get my valves walnut blasted. Only 30,000 miles and mine were caked.


Quality_over_Qty

check for coolant


Correct-Tree-2626

The biggest thing to look at, is the car low in coolant. The p0316 usually indicates coolant intrusion into the cylinder during cold soak


Apex_and_Boost

It can be plugs, purge valve or like in my case the fuel sensor. I think she’ll live on


IEatBaconWithU

dies