r/i30N

▲ 8 r/i30N

I30N in limp mode after hard acceleration - HPFP problem?

Hi guys, having trouble with my 2019 i30N in the last two weeks. (own it now for 1 year)
After hard acceleration and revs over 5000 rpm the car goes into a kind of limp mode, but no lights on the dashboard and no "hard" DTC's when diagnosing via code reader, BUT there are "pending DTC's" recorded for "P0088" (= Fuel rail/system pressure - too high bank 1)
As for the limp mode, in the video you can hear and see the car very slowly accelerating, even though I'm on full throttle, and the boost pressure control oscillating up and down very quickly and not building full pressure.

After letting the car cool down, or after a day it works perfectly fine again until I press it over 5000 rpm - then same symptoms.

So far so bad - I know that those cars have troubles with the HPFP (high pressure fuel pump) and I think that my symptoms are very characteristic for a HPFP that is failing more and more - please confirm if this sounds like the root cause to you.

Today I went to my local hyundai dealership / workshop and told them about my problem and made them aware that there is a official recall / service campaign for my car.
(I saw a few people posting about this service campaign / ECU update since around March and I checked my VIN on https://recalls.hyundai.co.uk/ - or the german equivalent site [the german site is now not available anymore..?!] and my car is affected / valid for this campaign (campaign code 40DC23 - valid until 30.11.2027 "PDe N ECU-Update - Improvement of emergency running conditions (DTC P0088)")
The dealer scanned my car for DTCs but found none.. (kind of expected because my code ready only found the P0088 as an "pending DTC") - they say Hyundai won't cover the costs of a new HPFP if the P0088 is not saved in the memory of the car.
But now it gets worse - they also say that the ECU mapping is not original anymore - so I guess one of the previous owners had chip-tuned the car... now the dealer won't / can't flash the original ECU software because Hyundai policy says so..

Now I have a few options - either find somehow the original OEM-software for my ECU so that they can maybe continue with the service campaign or I replace / source the HPFP myself and keep the same software.

What do you guys think? What would you do in this instance? Sorry for the long text. Cheers.

▲ 7 r/i30N

Strange noise in normal mode.

Hi,

I have a 2023 i30 with 10k miles on the clock.

When I put the car in normal mode the exhaust has a weird screeching / metal noise but when I select sport or n mode the noise disappears..

I can only hear it when the windows are open..

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u/waynestoked — 2 days ago
▲ 8 r/i30N

New purchase

Just acquired my i30n this Friday at 90,000 miles drove it home and have been glued to the car since. Wanted one for ages and I’m so happy with it. Just a few questions from my end. I know location is a major deal and being from the holy land of Bradford, UK but what has everybody got for security? So far only a steering lock on him but realistically this thing is my pride and joy and the thought of him being stolen boils my blood. Also. I understand the car and its features to ensure I don’t blow up the engine but how long do people usually have their car running before they have some fun with it and how many times can you “floor it” before the car slows its self down. After pick up the car was loving a pull but towards the end of yesterday and start of today I’ll pull in second gear and when I switch to third. Nothing. No power no pull. I can see that it will be the engine being too hot but after one pull in second I wouldn’t expect him to be worn out before I get to third that’s all. Thanks guy!

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u/LonelyGur4537 — 4 days ago
▲ 3 r/i30N

Future achat/avis i30N 2017/2018

Bonjours, en regardant un peux partout sur les forum je m’en rend compte que ce modèle a quand même beaucoup de problème ?
Quelles sont vos avis dessus ? Est-ce un bon choix pour une voiture de tout les jours ?
100 000 kilomètres est-ce trop?
Quel sont les gros soucis dessus ?

Merci !

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u/Bright_Ruin8482 — 4 days ago
▲ 45 r/i30N

Need some inspiration!

Hello fellow N owners.

I am looking to downsize the factory 19’s to 18’s at some stage.

Looking for inspiration of wheels you have on your rides!

Thanks in advance!

u/Toohon — 7 days ago
▲ 18 r/i30N

How’s the easiest way to fix the red on the front splitter? Just wrapping it or repainting?

u/Kuqz — 7 days ago
▲ 5 r/i30N

Should I do it?

I'm thinking of getting an I30 N as my first car and found a good 2024 example with only 8000km on it. The buyer is asking for ZAR 550 000 or about $32k. Is this a good idea or should I keep looking?

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u/Brad_Zulberg — 10 days ago
▲ 9 r/i30N

Quieter after service

Had my 71 plate i30N in for its 5th service a couple of weeks ago and they did the hpfp replacement, car now sounds noticeably quieter and a lot less difference between normal and N mode, really disappointed to be honest I feel like it’s taken a lot of character out of the car. Has anyone had a similar experience?

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u/benmx28 — 7 days ago
▲ 24 r/i30N

4x refurbished N Performance alloys

I have 4x newly refurbished N Performance alloys for sale.

I would prefer to sell them all together

Based in Norfolk UK

Open to any offers

u/Excellent_Law5177 — 8 days ago
▲ 2 r/i30N

Common faults / what to look for when buying

I've been eyeing one i30 N from 2018, driven for 130-140k km.

Is there anything I should be aware and ask if something's been done? All I have found is some interior rattles, fogging headlights, some talk about hpfp, and some 2018 models had some loose battery terminals.

As the car is 2018, there's no GPF, right?

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u/EmptierVoid — 8 days ago
▲ 0 r/i30N+1 crossposts

Car damaged from parking space

Hello guys, I was reversing into a space and in my blind spots was a damaged knocked over iron pole which scraped my drivers side door. It was too low to see in mirrors and hidden behind a wall on the way in. How much will this cost to repair and are the company (Papa Johns) liable for failed upkeep of the space, shot in the dark I know. Thankyou.

u/One_Bug_6906 — 12 days ago
▲ 4 r/i30N

dp/gpf/res delete etc

I’m looking to do some sound mods to my car, it’s not loud enough anymore.

Fyi, I want the car to be louder than stock but not obnoxious, I leave for work at 4am most days and I feel like my car is already too loud on cold starts.

I’ve heard gpf and res deletes are good options but I wanna hear it first hand from people that actually have them done. Sound, pops/bang clips if you have them please.
________________________________

EDIT: I now know Aussie models do not have a GFP 😧
________________________________

Im in Brisbane Australia.

Been tossing up with getting a downpipe, obviously xforce is the most reputable retailer here for Australia but I really just want opinions, I would love to go catless but I can’t seem to find a good catless dp from Australia retailers.

HELP

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u/bazuhhh — 10 days ago
▲ 2 r/i30N+1 crossposts

Has anyone replaced the EPB on an i30?

Hi all. I’ve had the EPB switch snap off, so I sourced a new part. Does anyone have any experience installing it? From what I understand it’s just about getting access underneath but so far it’s a been a real pain. Any tips?

u/Ploddix — 8 days ago
▲ 2 r/i30N+1 crossposts

What’s the best track day setup Elantra N?

I have Elantra N and stock they are good track day cars but what about modded?

See plenty of tunes that can make 350+whp and make it. I’ve in a straight line or roll race 60-130 etc but what about track day?

Intercooler a must? Tunes? Dump pipes? What sort of boost is it best to limit? Will a tuned Elantra N just heat soak on track?

What is a great modded track day setup?

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u/Glittering_Poem9779 — 12 days ago
▲ 5 r/i30N

Front suspension movement

Hi guys,

Does anyone experience slight movement from the front suspension when accelerating hard?
Is it normal or I be worried about my front suspension?

Has anyone changed their tyres and started experiencing slight vibrations when driving at normal speed from the accelerator?

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u/Ok-Personality1758 — 12 days ago
▲ 3 r/i30N

Automatic Bootstruts Hatchback 2023 i30n

Does anyone know where to buy automatic boot struts for a 2023 hatchback i30n? I’ve looked and can’t find any

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u/ItzNihaal — 11 days ago
▲ 20 r/i30N

Fogging headlamps

Hello, I have 2019 I30N fastback and both my headlamps suffer from serious fogging. Do you guys have this same problem and do you know any DIY tricks to fix this?

u/flusha_cheatss — 14 days ago