2013 Hyundai Genesis Coupe 2.0T BTR AT Tune not working - Hyundai Genesis Forum
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post #1 of 24 Old 08-24-2018 Thread Starter
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2013 Hyundai Genesis Coupe 2.0T BTR AT Tune not working

Hey Guys,

New to this place so any help is appreciated. I've looked everywhere and can't find a solution to my issue. I purchased the AT tune from BTR for my 2013 Hyundai Genesis 2.0T but it does not allow the vehicle to run. The vehicle will turn over and idle to 800 - 1000 RPMs then die after a couple seconds. There is then a strong smell of fuel, like it's being flooded. I have been in communication with BTR and they even swapped out their ECU with another one but I have the same issue. I've swapped out the spark plugs that BTR recommended for this tune with the same ones (ngk 2309). I've gaped the plugs from .028 up to .040 but same issue. I've done the key dance with various times intervals in between first plugging in the new ECU but with same results. On their newest ECU it blew one of my ecu fuses and I had to replace that. What is going on?

My setup

Injen Intake, Synapse Engineering BOV , 3" downpipe, testpipe, and exhaust

Thanks!
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post #2 of 24 Old 08-25-2018
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Why did you change the gap on the spark plugs? If I am understanding you correctly you widened the gap to .040? If you did that that is way to wide for that tune. You will blow out the spark. If anything you should have closed the gap just slightly. If you blew the fuse for the ecu you could have not connected the harnesses securely and it created a short. If you smelled raw fuel and you widened the gap on the plugs then you aren't detonating fuel mixture.

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post #3 of 24 Old 08-25-2018
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Quote:
Originally Posted by hollysheepsht View Post
Why did you change the gap on the spark plugs? If I am understanding you correctly you widened the gap to .040? If you did that that is way to wide for that tune. You will blow out the spark. If anything you should have closed the gap just slightly. If you blew the fuse for the ecu you could have not connected the harnesses securely and it created a short. If you smelled raw fuel and you widened the gap on the plugs then you aren't detonating fuel mixture.

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Yeah, seems like a ridiculously wide gap. Pull and check the plugs c
(they will tell the story)...are they gas soaked?
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post #4 of 24 Old 08-25-2018 Thread Starter
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The current gap is .028 with the new plugs. The only reason I increased the gap from .028 to higher increments, like .030, .032, etc, leading up to .040 was I was grasping at straws at that point trying to figure out what on my end I could try. But with the new plugs I went back to .028.

I think the blown ecu fuse was due to BTR asking me to change the ECUs out with the battery still plugged in, which I thought was not right. I could be wrong but I was always taught to unplug the battery before messing with a vehicle. The sad thing is I've swapped the ECU out from stock to BTRs so many times I can probably do it blind folded trying to resolve this weird issue. I've verified that the connector to the ECU is on and closed fully. But the issue is still there. When I go back to the stock ECU it runs like crap for about 10 seconds and then it runs like it should.

This is what the old plugs looked like when I swapped them out. They were gapped to .028 in this picture.
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Last edited by Syphon; 08-25-2018 at 09:58 AM.
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post #5 of 24 Old 08-25-2018
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Do you have an AFR gauge?
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post #6 of 24 Old 08-25-2018
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You seem to have legitimate factors. Just a few questions. First are you running a aftermarket o2 housing "primary cat delete "? What octane range did you select for the tune? Did you select the correct vehicle manufacturer build date for that tune? Last any check engine light when the canned tune installed?

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post #7 of 24 Old 08-26-2018 Thread Starter
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Sorry for the delayed response, was out of town for a few days and cell service was sketchy at best...

Unfortunately, I don't have a AFR guage but at this point I may just pick one up if it helps me figure this out.

I still have the primary cat and only messed with the downpipe, secondary cat removal/test pipe swap, and cat back exhaust. I selected 91 octane because that's the highest I can get around here. I've double checked my initial purchase order for the BTR tune and cross referenced the driver side door sticker build date and the VIN build date to make sure I didn't make any mistakes. Everything seems to check out.

I can get the car to start briefly with the canned tune but it ruff idles then dies within seconds of turning over. The check engine light stays on the whole time from inital key turning to the ON position till the vehicle dies. I've tried to get engine codes with my ODBII scanner and the Torque app but it isn't picking anything up??
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post #8 of 24 Old 08-27-2018
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You say the vendor exchanged ecu's for you and you had the same exact results so that should tell you something. My advice to you is when you are dealing with vendors who have mass produced engineered canned tunes they tend to leave no responsibility on themselves so if you weren't going to run a aftermarket o2 housing or a wideband AFR or oil cooler for the probably highly rich tune you purchased,maybe you might have to take a loss but you still have a functioning motor with your stock ECU. Take your time. Do alot of research. The path you have chosen isn't working for you as it didn't work for me either. At least you car is not sitting at a dealership waiting to be repaired or something along that line.

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post #9 of 24 Old 08-27-2018
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0.04 is way too high.

Have you tried clearing out the cylinders before trying to start it again?
(do this outside and not in an enclosed space)
remove spark plugs and coils
disconnect injectors
crank car with hood open
Put everything back together

This will push any fuel out the spark plug holes, so might want to cover the top of the engine with a towel or something.
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post #10 of 24 Old 08-27-2018
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I imagine the new set of plugs are also fuel fouled so I woukd try to clean and make sure they are dry before any refiring.
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post #11 of 24 Old 08-27-2018
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FWIW the ECUs are 'hot swappable". If you look at the connector on the wire loom end the grounds are the first/last to make contact.

2010 Red 2.0L track

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post #12 of 24 Old 08-27-2018
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The ECM reset is done with the ignition ON, as you disonnect them. This will NOT make the fuse go.

The ignition is then turned OFF.

The ECM is then re connected.

The ignition is turned "ON" for 25 seconds then turned OFF.

The ignition is turned "ON" again for 15 seconds, then turned OFF.

Start car.

If you want to clear your cylinders easily and cleanly remove the fuses for:

1. HPFP
2. Ignition rail

Crank the motor 10 seconds, I guarantee any excess fuel will be gone.
Re-connect fuses, fire her up.

If you have a hotter tune you should be using HKS M40XL's or NGK race plugs. Dont **** around with the lesser choices. GAP is .028...........doesnt matter if its a 2.0 T or the 3.8 with the aforementioned plugs. Toughest in the industry, worth every penny.

Did you mail in your TCU and ECM or did you purchase new units from them?
What is Luke saying to you ?

Something is rotten in Denmark !!! This should not be happening. I would send both back to them, tell them to put it in a gen and figure it out till its right.
**I have the combo with my turbo kit, I had to get mine all the way from Korea. Its the best dam setup in a car I 've ever had.

Here we go again !

Last edited by Gaijinn; 08-27-2018 at 03:00 PM.
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post #13 of 24 Old 08-27-2018 Thread Starter
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Thanks for all the help. I'm going to try clearing out the cylinders and checking on the new plugs to see if they are fuel fouled. I'm also going to try the ECM reset instructions and see if I get better results. Furthermore, I looked at my original paperwork from the dealership I noticed that a Pursuit car alarm system was installed. Has anyone had issues with a ECU swap and a car alarm? I'm thinking people have... so that is another thing I have to look at...

When I originally ordered from BTR I got the ECU/TCU combo and had the issue. I've been emailing Luke and we have been trying everything. The aftermarket TCU has been working with the Stock ECU for some time. Luke and I decided to just send back the aftermarket ECU for an exchange because they thought it might have been a bad tune. But now that the new ECU has had the same issues I'm thinking it has to be my car.

I have been waiting to hear back from Luke because he was going to ask their Tuner about these issues. Then today, Luke mentioned that they tested the ECU out and it ran fine and it's up to me if I still want to test it out.
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Ok after cleaning the plugs, clearing the cylinders, and resetting the ECM it ran for almost 2 minutes but then died again. It then would go back to the same issue I was having before. Pulling the spark plugs back out they seem to be fuel fouled again.

The pic of the 4 plugs is before cleaning them. And the pic of the single plug is right after it ran and died.
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post #15 of 24 Old 08-28-2018
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then its sounds like they had it tuned too rich for idle.

I wonder if they just plopped a fuel trim for BK1 onto a BK2 bin.
Or they have the lambda map messed up... or something weird going on with your O2 sensor.

2 minutes, is long enough for the 02 sensor to get a proper readying from.

Did you just get a basic can tune, or are there anything that you specified for the tune?
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post #16 of 24 Old 08-28-2018 Thread Starter
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As far as I know, I just got their canned tune. Below is what I ordered from them. They mentioned that they have never ran into this before and that it ran fine on a car at their place. I'm suspecting that they have given up on ideas and it's up to me to figure it out. The problem is I probably need a local tuner that can plug in their ECU and see if it's setup correctly. They did offer that I can return the ECU for a refund, so there is that. I may just do that and wait until they have a tune event near me and I could go and see if they can help me out...

BTR ECU + TCU Tune for Genesis Coupe 2013+ 2.0T Automatic Transmission (Stage-AT)
Engine Type: 2.0T
Immobilizer: No (Key Type)
Transmission: Automatic
Octane: 91 Supreme
ECU: Pre-tuned ECU (Customer does NOT send in own ECU)
1:1 Throttle: No
2nd o2 sensor CEL: Turn off (Does not pass emissions)
Spark Plugs: NGK 2309 1 step colder plugs - $40.00
Region: United States
Year: 2013
Build Date: After 04/15/13
Transmission tune option: Yes I want a TCU tune (comes on a new TCU) Rev Limit at 6800 - $680.00
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post #17 of 24 Old 08-28-2018
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Things "I" would do in you situation.

put the original plugs in
empty the tank and put in regular, just to see if it makes it to somewhat usable.

Maybe your area has super nice gas.
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post #18 of 24 Old 08-28-2018
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Quote:
Originally Posted by Syphon View Post
As far as I know, I just got their canned tune. Below is what I ordered from them. They mentioned that they have never ran into this before and that it ran fine on a car at their place. I'm suspecting that they have given up on ideas and it's up to me to figure it out. The problem is I probably need a local tuner that can plug in their ECU and see if it's setup correctly. They did offer that I can return the ECU for a refund, so there is that. I may just do that and wait until they have a tune event near me and I could go and see if they can help me out...

BTR ECU + TCU Tune for Genesis Coupe 2013+ 2.0T Automatic Transmission (Stage-AT)
Engine Type: 2.0T
Immobilizer: No (Key Type)
Transmission: Automatic
Octane: 91 Supreme
ECU: Pre-tuned ECU (Customer does NOT send in own ECU)
1:1 Throttle: No
2nd o2 sensor CEL: Turn off (Does not pass emissions)
Spark Plugs: NGK 2309 1 step colder plugs - $40.00
Region: United States
Year: 2013
Build Date: After 04/15/13
Transmission tune option: Yes I want a TCU tune (comes on a new TCU) Rev Limit at 6800 - $680.00
They said the same exact thing for my unique situation I had with their product that they never had had this problem happen ever. They would not offer a refund or even check the product out for me. I offered to send it to them and they said no need because they are sure it wasn't their product.
If they did actually offer you a refund then be the Lucky one and take it. At least your car runs normal with the stock ecu.
But you can also keep troubleshooting and hopefully you get it running.


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post #19 of 24 Old 08-28-2018
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If its still giving you the issue even after you swapped the ecu out I would ask for a refund and just go SFR.
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post #20 of 24 Old 08-30-2018
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Spark plug type and GAP from .028-.040 doesnt matter at idle the car will run with go cart spark plugs as long as they are the correct size and length. HPFP? Its a 2.0 he doesnt have one. Fuel octane 87-110 doesnt matter at idle the car will run. CAT/O2 sensor fuel trims dont matter at idle the car will still run.

None of these things will cause his issue. Now if it idles fine but when he gets into boost it starts acting up then sure, any nember of these things could cause the issue. But the car runs fine as soon as the stock ecu is put back in.

Michael has the right idea.... Using the KISS method (keep it simple stupid, aka Occams Razor) I say your BTR ecu either has the wrong injectors in map or its flat out bad(leaning toward just flat out bad since you're blowing fuses). My best friends first SFR ecu had this exact same problem and it was rectified by SFR sending him a new ecu. Red is correct about them being hot swappable. I have swapped out my ecu without disconnecting the battery 30+ times, either for taking the car for service or letting someone use my ecu to see the differece the tune makes and ive never once blown a fuse on either my car or someone elses.

Quote:
Originally Posted by hollysheepsht View Post
They said the same exact thing for my unique situation I had with their product that they never had had this problem happen ever. They would not offer a refund or even check the product out for me. I offered to send it to them and they said no need because they are sure it wasn't their product.
If they did actually offer you a refund then be the Lucky one and take it. At least your car runs normal with the stock ecu.
But you can also keep troubleshooting and hopefully you get it running.
Thats some total BS right there. I would be livid if I paid that kinda money and they wouldnt even let me send it back to them to check it out. Definitly would NEVER get my business again. At least Jay did it right. He said the same thing that he didnt think it was his ecu but he would check it out. Come to find out it was the ecu and he sent my buddy a new one free of charge. OUTSTANDING customer service from Jay and SFR.

XXX Motorsports DynoJet says...
Stock 228whp 269wtq.
Now 269whp 322wtq

Special thanks to SFR for turning the genesis from meh to OMG. BTW if you have a 2013 2.0t genesis and its not tuned, your car sucks. The worst part is that you dont even know it.

Last edited by TurboTerror; 08-30-2018 at 06:37 PM. Reason: Clarification
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