Hesitation in boost and high rpm

[StealBlueSHO]

Logs . Thoughts?

Fuel pressure is holding well enough I suppose.. it dipping.. which it shouldn't with that tune but we already know this... but its not dipping below 1500 psi...

You are having a good amount of KR on every run...

I would be concerned with this tune for the winter months...

 

[polskifacet]

We'll see i think this last tune will hold be over a bit longer. I know AJP fine tune is the end goal. Bought some other accessories (catch can) so I would like to wait a bit before spending more money.

 

[StinkinLinkin13]

Well... I hate to re-open this can of worms but add me to list of LMS tune users having this issue. I'm disappointed that this is still an issue as highly regarded as LMS appears to be. I expected a refined tune considering how long they have been doing it. I've only had it for a few weeks but is not quite what I expected. Don't get me wrong at moderate acceleration and low end improvements are very impressive. But WOT high rpm misfires and nosediving just ruin the tune. Not to mention the violent (banging) wot shifts on the 3 bar v11 perf tune. No way anyone in their right mind would treat their tranny like that and expect it to last. I know what firm tight shifts feel like and what breaking internals shifts feel like. This tune being the latter. Hopefully some solutions found soon. I'll admit I didn't read all 30 pages of this thread but has anyone found any successful fix for this issue?

 

[FoMoCoSHO]

Well... I hate to re-open this can of worms but add me to list of LMS tune users having this issue. I'm disappointed that this is still an issue as highly regarded as LMS appears to be. I expected a refined tune considering how long they have been doing it. I've only had it for a few weeks but is not quite what I expected. Don't get me wrong at moderate acceleration and low end improvements are very impressive. But WOT high rpm misfires and nosediving just ruin the tune. Not to mention the violent (banging) wot shifts on the 3 bar v11 perf tune. No way anyone in their right mind would treat their tranny like that and expect it to last. I know what firm tight shifts feel like and what breaking internals shifts feel like. This tune being the latter. Hopefully some solutions found soon. I'll admit I didn't read all 30 pages of this thread but has anyone found any successful fix for this issue?

Have you reached out to LMS?

 

[polskifacet]

Well... I hate to re-open this can of worms but add me to list of LMS tune users having this issue. I'm disappointed that this is still an issue as highly regarded as LMS appears to be. I expected a refined tune considering how long they have been doing it. I've only had it for a few weeks but is not quite what I expected. Don't get me wrong at moderate acceleration and low end improvements are very impressive. But WOT high rpm misfires and nosediving just ruin the tune. Not to mention the violent (banging) wot shifts on the 3 bar v11 perf tune. No way anyone in their right mind would treat their tranny like that and expect it to last. I know what firm tight shifts feel like and what breaking internals shifts feel like. This tune being the latter. Hopefully some solutions found soon. I'll admit I didn't read all 30 pages of this thread but has anyone found any successful fix for this issue?

Fix = AJP Tune

 

[StinkinLinkin13]

Yes. Apparently I am another rare example. Although after doing just a little bit of searching online I've come to find it doesn't seem to be very rare at all. I am not interested in a "water down" version of the tune tho. I paid a decent amount of money including cai (which lets be honest does nothing except for the fact that its washable and sounds good) 160 tstat 3 bar map and full exhaust plus tuner. But when I mention it they say its "odd". Yet doesn't seem to be very odd at all. And don't be mistaken I am not dogging on LMS in any way. But this is a real issue that needs to be addressed and at very least acknowledged.

 

[polskifacet]

I tried for a year including driving to LMS, I made it a mission to call everyday. Z called in my behalf multiple times, they have no interest in changing their tune for you. Go with AJP and you'll just enjoy the car vs going down a rabbit hole.

 

[polskifacet]

The least you should do is find a used x3 with an unlock left so you can log and try AJP's tune if we see the same fuel pressure drop (I still have it but AJP made tiny adjustments).

 

[ajpturbo]

It still is possible that you have some mechanical problems but without viewing a datalog it can be tough to point fingers....Despite what some people and companies will admit, custom tuning for each specific car can be beneficial....In polski's case I don't think the tune was solely to blame but there was an unwillingness from LMS to alter the tune. Although there were no mechanical problems to be found.

You may have a weak fuel pump but we are speculating without a datalog. You may have an ignition problem since you are mentioning misfires but again a datalog with specific PID's would help.

I will say from the logs of LMS tunes I have seen, the typically don't run enough boost to cause fuel pressure issues which is why it's easy for them to sell "set it and forget it" type tunes...They were developed and tested engineered tunes, so while I would not call it a custom tune for your car it is not your run of the mill "canned" tune either. And that's also why I wouldn't be quick to call your tune the problem...I've seen it too many times where a person's car is not mechanically ready for a tune but people do it anyway...If you have a problem before a tune then you will have a worse problem after the tune.

Good luck getting them to acknowledge any of your so called tune issues.

We have seen it here before whether it's from someone leaving LMS for a resolution or going to LMS for a resolution, unfortunately your end game may be to switch tunes if you are not happy. You may be asking for something that simply won't happen.

 

[StinkinLinkin13]

I tried for a year including driving to LMS, I made it a mission to call everyday. Z called in my behalf multiple times, they have no interest in changing their tune for you. Go with AJP and you'll just enjoy the car vs going down a rabbit hole.

That's discouraging to hear. I was thinking about trying a different tuner but haven't heard much when it comes to Unleashed or others... LMS seemed like a no brainer but here I am. So I am definitely considering it. They (LMS) don't seem to keen on returns and refunds in my reading.  "Its the cars fault" is what I have come across... The tune just "exposes" flaws that were already present in the vehicle that the stock tune hid. I mean come on. Idk man. But you're right I don't want to sit here chasing ghost. I've already done plug swaps sp534 various gap options 24 26 28 30 etc... The car has ALL fresh fluids. Coil boots etc. Use top tier 93 octane from various stations. Runs absolutely perfect on stock tune. I may be left with no choice but to return the tuner and request refund and explore other tuning options if they'll be so courteous. It blows that this supposed easy mod was one of the reasons I went with this Ecoboosted MKS. And I am already having issues. I was already skeptical of the ability to tune a car reliably this way as I normally would get my cars tuned custom on a dyno... Idk. I will continue to search for a solution in the meantime and if I do find some mechanical issue with the car I will gladly admit it and post my findings. Again.To be clear. Not a knock on LMS but these are real issues that I am having and apparently others as well. Keep you posted on my findings. Any good data logging software recommendations lmk... I have Torque pro on my phone but haven't really tried their "data logging" not sure if it is a practical useful logger in a that sense.

 

[ajpturbo]

I have only personally used Livelink via SCT for logging so I can't really speak to the apps such as Torque pro but I think most here would agree that Livelink is the way to go for logging especially when trying to diagnose a problem or in depth data log analysis.

Also I would be careful when assuming that a dyno tune will give better results. Many people that dyno tune cars won't touch ecoboost..You really need a person that specializes with the platform, in fact that goes for any late model car in my book....Tuning is not simply tuning anymore...The ECU's and file sizes are so complex and large there is so much.

There is no real need for a dyno for these cars for the most part unless you are doing heads, cams and the likes...ANd most people aren't doing that with these cars becuse those parts don't really exist..I've said this before but a dyno will give you a controlled place to run the car if you don't have the capability to do it legally or safely...The car gives you all the data you need with all the sensors.

Remote tuning can be much more cost effective and complete...A dyno tune will cost 400-600 typically and you generally get half a day. A remote tune may cost 125-200. You may get 10 revisions to your tune for 150...Way more value there and you get a more complete tune. because the tuner will simply review the data that you did the work to obtain...If I dyno tune a car I'm locked into 1 persons car for hours...If I'm tuning remotely I can multitask so it's way more efficient for customer and tuner.

 

[StinkinLinkin13]

Yes sir. That's why I had confidence in LMS. I know they are virtually specialist with this platform which is why I was surprised at these issues. Including ridiculously violent trans shifts as well on the perf v11 tune on my particular MKS @ WOT(yes even AFTER a full tank/350+ miles of driving for the adaptive learning). I would assume it would be another hidden problem only exposed by the tune but always present before. It just seems at this point there's nothing more that can be done on their end except a milder tune... Which isn't what I paid for. Why should everyone else pay the same price and get a better more aggressive problem free tune experience. Well. We will see how this unfolds. Keep you posted. At this point with my personal experience I would not be able to recommend this tune/tuner... Understanding My experience is an "exception"...  I will look into that data logger. Thank you guys for your input.

 

[ajpturbo]

I would offer you a tune for free and then if you were satisfied and had better results you can pay later but unfortunately you would need a device.....I know it still kind of sucks because you paid good money already for your LMS stuff and they are generally the most expensive in the industry.

My gut feeling says you have other things wrong but that doesn't mean it can't be helped or diagnosed better with logs...I still think something was amiss with Polski's fuel system but we were able to help it...He changed everything possible and all I could do was say something was wrong without giving a reason other than my other tunes didn't respond like his....So we were all kind of correct with our accusations.

But you would have to datalog my way with your LMS tune first so we could see what is going on with that.

 

[StinkinLinkin13]

Thanks for the offer... I will definitely consider it. I definitely would reward the work should it work out. I am on the hunt to figure this out. I do like the challenge and hopefully will have some positive results soon. What is the device and where can I find one? SCT X3? Thanks again. Im just one of those guys that like things to operate at their maximum potential. Pain in the arse sometimes.

 

[ajpturbo]

An X3 would be your cheapest bet if you find one used....I sell devices but only new ones.

 

[SHOdded]

I would go with an X4 for a 2013+ MY vehicle.  In any case, you can sometimes find "used" devices by contacting Torrie at Unleashed Tuning.  Unleashed is an official vendor on this forum.
info@unleashedtuning.com

You can also browse our ads section to see who is selling a tuning device, or put up a Wanted to Buy ad.
https://www.ecoboostperformanceforum.com/index.php/board,30.0.html

As far as the LMS tune goes, what are the official requirements to run the tune - fuel especially?  Only top tier fuel is advised at all times.  Not all top tier fuels behave the same, and brand performance can vary depending on which area you live in.  You will need to scope out some local stations and compare results.  If you have winter fuel in your area, that will impact performance on these "racehorse" tunes.

Re the violent shifts, that could be a combination of shift pressures, road surface temperatures, wheel/tire setup, etc.  But the easiest "fix" is the shift pressure, just ask LMS to do that.  Also, they recommend overfilling trans fluid a pint or so to prevent cavitation and it seems to work out pretty well.

 

[polskifacet]

If you decide to get deeper into diagnosing, I have gauges for the low pressure pump which will allow you to do WOT pulls with the gauge sticking out from under the hood and a tested good HPFP. Will ship for free just to help you out! (maybe a deposit so I get them back lol)

As for mechanical issues everything that I've been able to check is in spec. It could be electrical gremlins more than mechanical. My car specifically; either uses more fuel than others for the same amount of power(o2 sensor could be off showing that its running a certain afr but in reality running rich) or the system can't produce the volume of others.

I added methanol injection which solves my issue at the power level I run. Maybe one day, if i keep the car long enough I may find the root cause by accident but also fine with dumping the car and enjoying w.e I buy next!

 

[ecoboostsho]

I highly recommend you ask them to try the V10 tune first before you give up out of frustration.  I had high RPM hesitation issues with the V9 in Cold Weather when it first came out and as I recall they did acknowledge there was an issue.  V10 completely corrected that.  They will fix soften your shifts if you ask.  I've run V11 for a little bit but I don't think it works for my car in the cold weather (aka crappy gas) very well. I am currently tuning remotely with AJP/Brad and have been very happy with the results. 

 

[ZSHO]

Yes. Apparently I am another rare example. Although after doing just a little bit of searching online I've come to find it doesn't seem to be very rare at all. I am not interested in a "water down" version of the tune tho. I paid a decent amount of money including cai (which lets be honest does nothing except for the fact that its washable and sounds good) 160 tstat 3 bar map and full exhaust plus tuner. But when I mention it they say its "odd". Yet doesn't seem to be very odd at all. And don't be mistaken I am not dogging on LMS in any way. But this is a real issue that needs to be addressed and at very least acknowledged.

Who from LMS Did you speak to Exactly? TIA. Z 
Due update/add your signature @ your earliest convenience!

 

[ecoboostsho]

I tried for a year including driving to LMS, I made it a mission to call everyday. Z called in my behalf multiple times, they have no interest in changing their tune for you. Go with AJP and you'll just enjoy the car vs going down a rabbit hole.

That's discouraging to hear. I was thinking about trying a different tuner but haven't heard much when it comes to Unleashed or others... LMS seemed like a no brainer but here I am. So I am definitely considering it. They (LMS) don't seem to keen on returns and refunds in my reading.  "Its the cars fault" is what I have come across... The tune just "exposes" flaws that were already present in the vehicle that the stock tune hid. I mean come on. Idk man. But you're right I don't want to sit here chasing ghost. I've already done plug swaps sp534 various gap options 24 26 28 30 etc... The car has ALL fresh fluids. Coil boots etc. Use top tier 93 octane from various stations. Runs absolutely perfect on stock tune. I may be left with no choice but to return the tuner and request refund and explore other tuning options if they'll be so courteous. It blows that this supposed easy mod was one of the reasons I went with this Ecoboosted MKS. And I am already having issues. I was already skeptical of the ability to tune a car reliably this way as I normally would get my cars tuned custom on a dyno... Idk. I will continue to search for a solution in the meantime and if I do find some mechanical issue with the car I will gladly admit it and post my findings. Again.To be clear. Not a knock on LMS but these are real issues that I am having and apparently others as well. Keep you posted on my findings. Any good data logging software recommendations lmk... I have Torque pro on my phone but haven't really tried their "data logging" not sure if it is a practical useful logger in a that sense.

Torque pro is almost useless for logging. Refresh rate is way too slow. If you have a solid OBD adapter (like the MX) you can do okay with Forscan on a fast computer but nothing I've found beats SCT for log resolution...

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