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JB4 map 3, misfire now CEL

I'm following this very interesting. I was having major issues but all caused from stock spark plugs and not gapping.

The ignition system is a weak spot from the factory, if it's not a plug, it's probably a coil pack acting up, or a fuel injector. Those sorts of problems are difficult to diagnose without a misfire fault telling you what cylinder they are coming from. I think the factory programming also has a fault re: misfire detection. The moment a motor sputters it should flag that cylinder and shut it down for emissions. It usually doesn't.
 
The ignition system is a weak spot from the factory, if it's not a plug, it's probably a coil pack acting up, or a fuel injector. Those sorts of problems are difficult to diagnose without a misfire fault telling you what cylinder they are coming from. I think the factory programming also has a fault re: misfire detection. The moment a motor sputters it should flag that cylinder and shut it down for emissions. It usually doesn't.
Yes Terry exactly I should have gotten it at least three CEL's last night. Ran it a few times this morning no issues. It almost seems like it has to be almost catastrophic before it flags which cylinder which did happen before I did the plugs showed cylinder 3 misfire. But the car was barely running.
 
I'm following this very interesting. I was having major issues but all caused from stock spark plugs and not gapping. Got the two step colder plugs from Burger Gap them to .022 and was running strong and fine. Thought everything was fixed. Just recently started getting a jerk under hard boost as though a misfire was happening again. It has been 18 degrees to 26° when I noticed this happening such as tonight. Could extremely cold weather cause this to happen I wonder? GD this car has been one thing after another since f*cking with it. I don't have any codes from it but I hear it and feel it it's misfiring. I have Intakes, downpipes/ mbrp exhaust, JB4 map 2. Was running e85 on maps 5 as well, didn't have that issue before. I'm hoping it's just the extreme cold weather maybe some blowout issues going on? I know log revert back to map zero log and try to identify. I'm just sick and tired of this that's all it just should run run strong all the time without issues that's how my 11 year old Subyleggy was 420 horsepower to the wheels, 4 years straight not a single goddamn issue. It's just frustrating

I pray faulty PCM is the fix. Next I'll have to look at spark plugs and JB4 install again.
 
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Kia Techline is pathetic lol. The tech sent them an email saying the ECU/PCM etc hasn't been modified from what he can tell. The only thing he noted was the intakes I put on, so now Kia wants pictures of the intakes and more information about it. As IF the intakes can cause computer issues SMH. So now it's 24 hours later and still no official approval for the repair order yet, in a shitty Ford Fusion rental.
 
I had that issue happen to me when first installing the spark plugs and JB4. CEL came on but I later found out that it was a faulty plug boot which was my fault cause that middle left side one is sooo hard to get out I must have bent it a little bit. Either way after that no issues.
 
From interior to exterior to high performance - everything you need for your Stinger awaits you...
I had that issue happen to me when first installing the spark plugs and JB4. CEL came on but I later found out that it was a faulty plug boot which was my fault cause that middle left side one is sooo hard to get out I must have bent it a little bit. Either way after that no issues.

After this, my goal is to double check spark plugs. If they are are clear, then I re-install JB4.
 
Kia Techline is pathetic lol. The tech sent them an email saying the ECU/PCM etc hasn't been modified from what he can tell. The only thing he noted was the intakes I put on, so now Kia wants pictures of the intakes and more information about it. As IF the intakes can cause computer issues SMH. So now it's 24 hours later and still no official approval for the repair order yet, in a shitty Ford Fusion rental.

Just to make their lives easier for diagnostics I always suggest removing EVERY modification if going in for a dealer tech to work on it.
 
Just to make their lives easier for diagnostics I always suggest removing EVERY modification if going in for a dealer tech to work on it.

I do know if they try to blame it on intake I'll immediately fight it legally and likely win. I agree though, to prevent headaches in future, lesson learned.
 
Wow. So Kia Techline is blaming the intake as causing the computers not to communicate and saying I need to return the intake back to stock. I also may have to pay the diagnosis as a result. Such BS. I should of taken the time to return intake to stock. Never thought in a million years they would blame intake.
 
I've seen dealerships blame defective power steering racks on non-OEM sized tires. So never underestimate their ability to shrug responsibility.
 
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From interior to exterior to high performance - everything you need for your Stinger awaits you...
What a nightmare. Kia is siding with their techline decision and charging me $160 for the diagnosis. the service advisor who supposedly was a tech for many years is claiming that he agrees that my intake setup is causing trouble for the computer to calculate the torque management and everything. My first experience with Kia has been terrible and now I'm thinking I'll return the lease afterwards vs buying. Disappointed.
 
You can’t really blame them for being that way. Automakers have stated for years that modifications will void warranty...because many folks who have modified vehicles have in fact damaged them. Financially it would be bad business for them to operate any other way.
 
You can’t really blame them for being that way. Automakers have stated for years that modifications will void warranty...because many folks who have modified vehicles have in fact damaged them. Financially it would be bad business for them to operate any other way.

Oh I can blame them if they expect me to believe an air filter change is causing torque management/PCM issues. Even the techs think it's untrue. I even talked to service advisor prior to install and he said "I don't see why an intake would cause a problem with the warranty".
 
This is a complete load of horseshit I used to work at k&n engineering. they have to specifically prove exactly how the intakes electronically have caused the vehicle not to operate properly or not to communicate with the ECU properly. If they cannot do this then they do not have a case. First I would contact the intake company that you are running on the vehicle explain to him the situation. Then refer to this. Magnuson-Moss Act and Aftermarket Parts | AutomotiveAftermarket.org
 
The magnuson-moss Warranty act was created just for asshats like this who want to refuse warranty when the parts on the vehicle have nothing to do with the part that has failed.
 
From interior to exterior to high performance - everything you need for your Stinger awaits you...
This is a complete load of horseshit I used to work at k&n engineering. they have to specifically prove exactly how the intakes electronically have caused the vehicle not to operate properly or not to communicate with the ECU properly. If they cannot do this then they do not have a case. First I would contact the intake company that you are running on the vehicle explain to him the situation. Then refer to this. Magnuson-Moss Act and Aftermarket Parts | AutomotiveAftermarket.org

I brought up the act and he said it's my word vs his and I have to prove I didn't cause it (opposite of how evidence works). He said since code is gone and they can't recreate it, they aren't obliged to replace part. Basically return to stock and if it comes up again THEN they will replace. Which I understand not immediately replacing the PCM, but why not cover the diag for me then at least???

Also I'm in California and it's a DIY intake. So I have no recourse through intake company. I called Kia corporate and they can't override it or even refund me diag. So I went to the GSM who reports directly to owner and they are going to research, question and call me back. They don't think I should of had to pay diagnosis.
 
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What a nightmare. Kia is siding with their techline decision and charging me $160 for the diagnosis. the service advisor who supposedly was a tech for many years is claiming that he agrees that my intake setup is causing trouble for the computer to calculate the torque management and everything. My first experience with Kia has been terrible and now I'm thinking I'll return the lease afterwards vs buying. Disappointed.

I'd get in writing you'll pay the $160 and remove the intakes, but when the same problem comes back, they have to refund it. Because everyone knows it will.
 
I'd get in writing you'll pay the $160 and remove the intakes, but when the same problem comes back, they have to refund it. Because everyone knows it will.

I did. Gonna return intake to stock but still put JB4 back on probably and keep an eye.
 
I brought up the act and he said it's my word vs his and I have to prove I didn't cause it (opposite of how evidence works). He said since code is gone and they can't recreate it, they aren't obliged to replace part. Basically return to stock and if it comes up again THEN they will replace. Which I understand not immediately replacing the PCM, but why not cover the diag for me then at least???

Also I'm in California and it's a DIY intake. So I have no recourse through intake company. I called Kia corporate and they can't override it or even refund me diag. So I went to the GSM who reports directly to owner and they are going to research, question and call me back. They don't think I should of had to pay diagnosis.
Until you said diy intake I was saying bullshit Kia dealers were and maybe still are installing k&n intakes stinger haus. Not that it makes a difference but on their end it is not even a manufactured part for the car it's a back yard mod. Hope it all works out for you.
 
I'd get in writing you'll pay the $160 and remove the intakes, but when the same problem comes back, they have to refund it. Because everyone knows it will.

If i reinstall JB4 can you tell me how I can control maps without Bluetooth? Also is there an online guide for install? I wanna learn to do it myself this time. The time consuming part is Bluetooth wire through firewall or whatever. I figure if I skip bluetooth wire+app for now, I can cut JB4 install and uninstall down to 5 minutes or so. Once I know in a month or two this issue is 100% gone, I'll do bluetooth wire.

Also gonna put this DIY back to facing towards driver. It's less air flow but then I can utilize stock bottom piece of intake and also put that back to stock in 10 minutes.
 
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From interior to exterior to high performance - everything you need for your Stinger awaits you...
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