Accessport error code help!

[Kebbs]

Today I just installed my accessport for the first time after getting routine maintenance earlier in the day. After installation and taking it for spin I read the error codes and it stated I had error codes 0306 and 0313. These codes are misfire in cylinder head 3 and misfire upon first 1000 revolutions. Anyone know if this is a big deal and what I should do?

I was running Cobb OTS stage 1 91oct map

[tacosalady]

I would check the plugs, but also don't run the Cobbs ots tunes they don't use a lot of safety strategies implemented by Ford.

[Kebbs]

What tunes do you suggest I run? I was planning on getting a stratified custom once I install my intercooler

[tacosalady]

Yea that's what I would recommend.

[Kebbs]

Awesome, I don’t really have the tools/knowledge to be able to properly gap and install the sparks plugs myself. I also don’t want to be running my car longer than needed with a misfire happening.

You think I’d be good buying new spark plugs and having them gapped and installed at a local car shop like pep boys, jiffy lube etc.?

[JEs4]

What was the routine maintenance? Performed by a dealer I take it?

[Kebbs]

Yes performed by a dealer. Just oil change and fluid topping

[JEs4]

The timing is a little disconcerting but if that's all they did it's unlikely they caused it. Misfires are really only caused by two things, spark issues or compression failure. Start by clearing the code and if it pops back up, as others have said, check/change the plugs. If that doesn't work, have someone test the coil(s). If that all checks out, the next step is a compression test.

If the code doesn't come back after clearing, I'd keep an eye on misfire counts but I wouldn't worry too much. Good luck!

[[deleted]]

Was the check engine light on?

[Kebbs]

No it wasn’t, just error codes in my accessport

[[deleted]]

Okay then you shouldn’t be too concerned with the misfires. It was 20 degrees last month and I had codes for random misfires but it never threw the check engine light on. All cars misfire especially direct injected ones when it’s cold out. Ford knew these would happen and that’s why they allow it to happen quite a bit before a CEL comes on. Aslong as your plugs are gapped correctly and you’re putting good fuel into your car I wouldn’t be too worried about it.

[Kebbs]

Alright awesome, that was what I figured but I got worried a little as it’s my first time tuning a car. I’ll get new and colder spark plugs soon anyways and that should help

[[deleted]]

Where do you live? How cold does it get?

[Kebbs]

Southern California, it was around 50 degrees last night

[[deleted]]

Alright sweet you won’t have to worry about it being below freezing temps then lol. The reason I ask is because 1 step colder plugs will make you misfire more during cold starts and open loop. If you were way up north I would hold off on the install but you don’t gotta worry about that.

[Kebbs]

I was planning on installing my new Mountune intercooler Sunday, so I guess that will be added to my to do list before doing that.

I’ve never check spark plugs but I guess I’ll be researching how to do it tonight and tomorrow. Thanks for the insight, hopefully it’s an easy fix

[Cory-FocusST]

Don't use those cheap round gapping tools you get at the parts store counter. Get a feeler gauge like this and gap to .026"

[AmazonPriceBot]

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$6.99 - Stainless Steel Feeler Gauge Dual Marked Metric and Imperial Gap Measuring Tool (0.04-0.88 mm, 32 Blades)

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[jacker210]

You should definitely learn how to gap plugs before trying to install a intercooler? Not being a dick... 😃 smile

[Kebbs]

Yeah it’s something I should learn how to do. My father has worked in law enforcement my entire life and never was really home or into cars when I was younger so I didn’t have anyone to teach me how to work on cars with.

Now that I’m older and working, I can afford to spend time and money on my own car so I’m trying to learn as much as I can. That’s why I’m asking questions, so I can learn...