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2016 Hyundai Veloster Rally Edition
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Discussion Starter #21 (Edited)
Well I had ordered a few more exterior upgrades I was going to try and install last weekend until I started throwing a cylinder 4 misfire code. Being close to 50k miles my first thought was spark plugs but I decided to swap the coils for cylinder 1 and 4 and while doing so I found oil residue on the coil pack. From what I understand this could be a failing rod or cylinder head..? Or the valve cover gasket? I was doing this diagnosis while late for work and in my rush I also sheared the head off of one of the ignition coil bolts so I also need to replace that... 🤦🏻‍♂️
Ended up taking the wife's car to work instead lol.

Update: I snapped a few pics of my f-up.

IMG_20200917_143006_01.jpg IMG_20200920_194351_2.jpg
 

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What all specific mods related to power do you have? What fuel do you run? What oil? Did you get the overheating addressed yet? When did the misfire code pop up(under what conditions)?
 

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Discussion Starter #23
Injen 3" intake, not sure what brand turbo downpipe, borla axleback exhaust, as far as I can tell everything else is stock including BOV but just vented to atmosphere. I only run Shell 93 octane fuel. Mobil 1 full synthetic oil. Radiator fan wiring harness is cause of overheating issue but temps have cooled down here and since I only drive highway I haven't overheated in the last 30 days, I just haven't had time to replace it yet.

Misfire code popped up after the car sat for two days in the garage without use.
 

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What plugs? Gaps? Miles on coils? Are the coils OEM? How many miles on oil? Stock tune? So code pops up but during what driving conditions?
 

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Discussion Starter #25
I assume OEM for plugs and coils, 49k miles as I have not changed them yet since owning the car. I will check the gap when I pull them but I am going to swap out for the HKS M40XL plugs regardless. Not sure of tune as I didn't install any of the current mods, is there a way for me to check that? Code popped up on startup and hasn't gone away. I haven't cleared it yet because I wanted to swap the coils cyl 1 and 4 to check if it was a bad coil. I would've cleared it today to test it but I snapped the ignition coil bolt so I never got a chance.
 

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Swapping in the HKS M40XL is pointless as same heat range as the oem. HKS M45XL would be the way to go if upgrading. I have those in stock for $110 shipped if you need them.

The 16 coils do not usually show issues at 49k miles like the 13-15 VT coils may but anything is possible. If you need coils I can get them for $200/set.

Tune can be pulled to see if stock or not or the car can be datalogged to determine that pretty quickly.
 

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Discussion Starter #27
I'll PM you for the spark plugs. Thanks man! I'm going to replace the valve cover gasket while I'm at it.
 

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Discussion Starter #28
Giving a quick update: cylinders 1 and 3 both have a small amount of oil leaking into the ignition coil chamber (odd because cyl. 4 was the one misfiring). I will be replacing the valve gasket cover, cleaning out the chambers and replacing the spark plugs. Luckily I took some time off work this week so I'll have time to do this and all the other stuff I had planned :ROFLMAO:
IMG_20200920_195156.jpg IMG_20200920_194554.jpg
 

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Also you should check the wiring harness, I had a squirrel chew threw my distributor pack wire which caused the my car to misfire.
 

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Discussion Starter #30
Also you should check the wiring harness, I had a squirrel chew threw my distributor pack wire which caused the my car to misfire.
Good call. I did a visual inspection today no damage and the connections are all good with no breaks. I'll do a test with a voltmeter once I have the new valve cover gasket and spark plugs installed.
 

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Discussion Starter #31
While I am waiting on engine parts to be delivered I figured I'd use some of my free time while not using the Rally to get some paint and appearance work done.

I used the G2 Gold Caliper paint kit on the brake calipers (and my wife painted the lug nuts, though I may buy new ones in black if the gold is really obnoxious). I also installed my new Rally Armor mud flaps. Once the paint dries I'll throw on my 20mm wheel spacers and put the wheels back on.

IMG_20200922_154630.jpg IMG_20200922_164730.jpg IMG_20200922_191710.jpg IMG_20200922_191701.jpg
 

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Discussion Starter #33
Wheel spacers on! I dig the new stance with the mudflaps it looks a lot more aggressive. Tbh I kinda hate the gold lug nuts, but I'll rock them for a while until I buy a new set of black ones.

IMG_20200922_230640.jpg 00100lrPORTRAIT_00100_BURST20200922230439925_COVER~2.jpg 00100lrPORTRAIT_00100_BURST20200922221900452_COVER.jpg
 

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I hope you run smaller than a 225 tire and/or do not ever lower the car or put a lot of load on the suspension or you'll have clearance issues with the 20 mm spacers.
 

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Discussion Starter #35
I have a 225 tire and I do not plan to lower the car at all (I never load anything heavy either). The ride is already stiff enough 😂
 

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You're good then.
 
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