Common problems after tuning?

[mLaddy]

Hey all,

New to the forum and the Sonic RS from the Veloster Turbo community.

Had multiple problems including a blown engine (threw rod out of cylinder 1) and turbo replaced under warranty, but had misfire issues after being replaced so decided to bow out before another detonated motor.

Glad to see that there is a lot more aftermarket support and even REMOTE tuning for these cars. We had to do ECU bench tunes and have a spare available if we wanted to avoid detection at the dealer level. I still find it hard to believe that I can't find anybody posting about their tune being detected over here.

Also glad to see little evidence of blown motors with this car. The 2013 VT was so notorious for blowing motors, we had an entire thread on velosterturbo.org and a thread entitled "2013 survivors" lol.

Blown engines...

2013 Veloster Survivors!

I was wondering, what kinds of issues do we see most frequently on the tuned Sonics?

Even stock on the VT, we were seeing torn BPV diaphragms, bad coilpacks, broken spark plugs, bad BPV solenoids, bad injectors, all of which contributed to misfiring and the engines blowing up.

This seems like a relatively safe platform from the searching I did, but just want to see what the consensus is before tuning. I'm not going to go super high boost or fully built either.

Probably just tune and exhaust TBH.

 

[mendoza_juan]

I can't speak of anything to worry about after a tune, mine is on the way, however for the turbo back I would recommend zzp, if money is an issue. As far as I know , theirs is the cheapest and good quality. I woefully have 3 different brands on my complete turboback which increased my cost about $400 over buying zzp's complete setup.

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[RMinNJ]

That's interesting (but sad) about the veloster. Does hydundai use the turbo engine in any other cars? I come from the saab community where every model had the same turbo engine. For gm they are putting the 1.4T in many vehicles. It was engineered with the turbo. The veloster almost sounds like they slapped the turbo on a regular engine after the fact?

 

[cndctrdj]

A few problems after the tune to look out for.
Gas mileage drops cause you can't stay off the gas pedal
Speeding tickets
Street racing tickets
Traction problems
Wrinkles on your face from smiling too much

Haha.

Honestly this bottom end is solid people have doubles the stock whp and not had problems. You will be fine.
The older clutches didn't hold well. But some have had no problem.
Nothing else really.
This is why Gm is great

 

[bluejay]

That's interesting (but sad) about the veloster. Does hydundai use the turbo engine in any other cars? I come from the saab community where every model had the same turbo engine. For gm they are putting the 1.4T in many vehicles. It was engineered with the turbo. The veloster almost sounds like they slapped the turbo on a regular engine after the fact?

they can be found in kia's too

 

[mLaddy]

That's interesting (but sad) about the veloster. Does hydundai use the turbo engine in any other cars? I come from the saab community where every model had the same turbo engine. For gm they are putting the 1.4T in many vehicles. It was engineered with the turbo. The veloster almost sounds like they slapped the turbo on a regular engine after the fact?

The 1.6 TDI is in the Veloster Turbo and the Forte Turbo. They haven't seen this problem any where near as much with the larger displacement turbos for whatever reason.

The 2013's were the doomed model year, after that it is really difficult to find examples of the newer ones blowing up. Although the ancillary parts are just as cheap and will often fail.

I guess Hyundai is just entering the performance world compared to GM so they have a while to go.

 

[mLaddy]

A few problems after the tune to look out for.
Gas mileage drops cause you can't stay off the gas pedal
Speeding tickets
Street racing tickets
Traction problems
Wrinkles on your face from smiling too much

Haha.

Honestly this bottom end is solid people have doubles the stock whp and not had problems. You will be fine.
The older clutches didn't hold well. But some have had no problem.
Nothing else really.
This is why Gm is great

Auto here. Glad to see I saw this tranny is also pretty bulletproof in a light car like the Sonic.

 

[djinn]

Welcome to the Forum, mLaddy! These cars are pretty bulletproof. I once towed a 4x8 UHAUL trailer from Cleveland, OH to Columbus, OH to Enfield, NH with a 1.8 5 speed and it was fiiiiiine.

 

[A Foam Pillow]

the first problem is buying a korean car usually fall apart from the start or later

 

[Rowdy_Sonic_RS]

The only problems I have seen over time are cracked intakes but you can prevent that by buying a CAI. I got the GM one. Other than that I haven't heard of many problems. Just watch some of the plastic components on the top of the motor. Other than that, have a blast. I have a 15 RS Sonic. Be careful with a tune. Some service departments can see that you have a tune. Even if you flash it back. My service department can see it and would void my warranty and I work for the dealer.


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[carsNskis]

The only problems I have seen over time are cracked intakes but you can prevent that by buying a COI. I got the GM one. Other than that I haven't heard of many problems. Just watch some of the plastic components on the top of the motor. Other than that, have a blast. I have a 15 RS Sonic. Be careful with a tune. Some service departments can see that you have a tune. Even if you flash it back. My service department can see it and would void my warranty and I work for the dealer.


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Which tune did you choose?

 

[RMinNJ]

What is a COI ? I put hose clamps and tie wraps on my intake manifold in a pathetic attempt to keep it from splitting.

 

[JesusTheAgnostic]

Well with my tune the cold starts can feel pretty violent, but it only lasts for like 20 seconds or around there. As far as I can tell the only real issue you'll get from a tune is the chance of the intake manifold cracking from the increased boost. And if you're going to modify your car yourself it's pretty easy to work on. The hardest problem might be getting to whatever you need, but it's all pretty simple.

 

[2014 Blue RS]

2 years+ and no complaints. Took a while to discipline myself to not mash the gas peddle so much after the tune. That struggle is real.

 

[AKghandi]

2 years+ and no complaints. Took a while to discipline myself to not mash the gas peddle so much after the tune. That struggle is real.

you are pulling double my mileage....

 

[2014 Blue RS]

After I upgraded the intercooler and loaded the newest tune from Trifecta things improved. You can find older posts by me expressing disappointment with my mileage. I was always below stated average.

 

[Kcmo83]

Yeah wow 47mpg my road trip from kc to howard oh i best 39mpg at 75mph

 

[2014 Blue RS]

My daughter for 43mpg round trip from Riverside to San Francisco but I don't know how she drove.

 

[skunk2419]

Recently received my tune from BNR using EFI live and so far the tunes are pretty solid. did data logging and just waiting for my revised tunes to come back but so far I have no complaints. And for what it is worth we went from getting 47 mpg to the other night we drove for almost 100 miles and we averaged 56 on the cluster using my eco tune from BNR (granted using the race tune its almost impossible to not want to smash the pedal into the radiator) but how true that mpg is with the eco tune well I don't know but ill see next fill up how we do.

 

[pbkn1p]

how true that mpg is with the eco tune well I don't know but ill see next fill up how we do.

Oh I super interested in knowing if your mpgs went up with the tune.



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