Soldato
- Joined
- 9 Dec 2009
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- 5,419
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What about the engine breaking something during the dyno runs when mapping? Not directly because of the map but maybe because of the mapping process?
Ecu remap causing faults. Thoughts?
- Thread starter BBT
- Start date
I doubt it but there are plenty of people who have had their cars remapped without issue. Heck you can get remaps like mountune that are manufacture supported.
Yea, and mountune have a long history with Ford and have gone through a manufacturer approval process and are also subject to regular review and audit.
So what makes a mountune remap different to others? It’s only perimeters they change and I doubt there are huge differences between each company.
I actually had mine done by a “man in a shed” but he came highly recommended very little in the way of r&d investment but I suppose he got lucky with mine and all the others? In fact I don’t think I heard of any that had issues.
Anyway struggling to see your point as if you had one there would no companies offering remaps and no one willing to risk it.
Mountune is Ford's official tuning partner. The tunes aren't just a simple flash, they upgrade physical parts as well to handle the extra load. It's also warranty friendly.
No we get that but they only offer the same parts that other tuners would also use. For example on the fiesta St they offer a package with an air filter which is nothing new.
https://www.mountunestore.com/products/m235-power-upgrade-kit
Now in terms of the map it will be largely the same as any other reputable tuning firm. They work off the same perimeters and principles.
No they do not. I have had many cars and mapped them. My last diesel was a 335d with no issues even after mapping. It was a much better map than what was on the car before! This is if you go to someone who knows what they’re doing.
A lot of mappers who aren’t very reputable or think they know what they’re doing by upping a x amount of % in the table values can cause issues. Not every car is the same, generic maps work but they don’t take into consideration a cars health. They’re sort of a safe bet. Which I think is what the OP has has because he states he uploaded it himself to the car.
OP wait for bmw and let us know what they find. We can speculate all sorts, best thing would be is to revert the car to standard mapping and see if it fixes the issue. If it does, it’s the map. Not sure if you tried this already?
Associate
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- 29 Mar 2019
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- Milton Keynes
Have you had issues in the past with remaps? As you seem to have a real deep set issue with cars having remaps, especially diesels.
If i was the OP i would probably be more worried about the fact that the car had been clocked, rather than the map itself doing the damage.
When I hear the horror stories from our local "tuner" I wonder why anyone would bother, quite a few cars on there first road test after the rewrite didn't make it back to the garage under there own steam and finally when they arrived on the back of the recovery truck needed new engines.
Let me just say, because i may not have made it very clear in the beginning.
I am the remapper. I have been remapping for a while but personal and friends/family cars. Its only the past couple year that i have been remapping publically. Before i went public i took 2 courses (basic remapping and advanced remapping) so im certified for obd and for bench ecu out work (tricore boot mode, bdm, cloning etc etc). I have all genuine tools (no clones) and all up to date with active subscriptions. Just needed to make that clear, my names not dave and i dont map from the shed haha.
Anyway the guy came to me for the remap and i shouldve seen the signs and walked away from it but didnt. He kept saying about guarantees that there will be no problems after and i assured him that the MAP software is guaranteed. So usual checks like milage, asking if service kept up with and scan for codes. I read the stock map and sent to my file writer, he tuned the file and i written it back to the ecu with no problems at all, totally text book. All usual checks after, car started and idled fine. I said to take a test drive to make sure he happy and he screeched down the street at high speed and headed directly down a dual carriage way. Few mins later he called to say car had stalled and wouldnt start. I went to him and he was irrate threatening this and that, he wanted it sorting out right NOW! Demanded it be taken to bmw from there so i had it recovered and took to bmw where it is now. I have since had the calls saying its my fault, i need to pay no matter what the problem is etc. I have told him my file writer has checked the map and no problems, explained that i knew NOW about the high milage that was not told to me and he said he doesnt care about that and he is well connected so if i dont sort it out im basically getting my head smashed in. Yeah, nice guy.
I am the remapper. I have been remapping for a while but personal and friends/family cars. Its only the past couple year that i have been remapping publically. Before i went public i took 2 courses (basic remapping and advanced remapping) so im certified for obd and for bench ecu out work (tricore boot mode, bdm, cloning etc etc). I have all genuine tools (no clones) and all up to date with active subscriptions. Just needed to make that clear, my names not dave and i dont map from the shed haha.
Anyway the guy came to me for the remap and i shouldve seen the signs and walked away from it but didnt. He kept saying about guarantees that there will be no problems after and i assured him that the MAP software is guaranteed. So usual checks like milage, asking if service kept up with and scan for codes. I read the stock map and sent to my file writer, he tuned the file and i written it back to the ecu with no problems at all, totally text book. All usual checks after, car started and idled fine. I said to take a test drive to make sure he happy and he screeched down the street at high speed and headed directly down a dual carriage way. Few mins later he called to say car had stalled and wouldnt start. I went to him and he was irrate threatening this and that, he wanted it sorting out right NOW! Demanded it be taken to bmw from there so i had it recovered and took to bmw where it is now. I have since had the calls saying its my fault, i need to pay no matter what the problem is etc. I have told him my file writer has checked the map and no problems, explained that i knew NOW about the high milage that was not told to me and he said he doesnt care about that and he is well connected so if i dont sort it out im basically getting my head smashed in. Yeah, nice guy.
When the DPF starts to go other stuff (generally only turbo or EGR) doesn't really go bang unless it was also failing - though DPF issues can result in the EGR valve getting nasty. Generally you will get a engine management light coming on and/or going into limp mode long before anything goes bang from that angle. (9 times out of 10 the turbo "exploding", etc. will be because of ignoring the strain that is being put on elsewhere).
You definitely can't just slap a remap in there on a lot of diesels though without knowing what you are doing - on my truck for instance the transmission is already at the line for having a tolerance margin and you will kill it within a few months if you don't uprate the relevant components as well - but apparently it runs pretty sweet if you do with the extra ~30% torque. (Also known to cause EGR issues if you tweak it for more than about 10% and obviously in this country EGR/DPF blanking/removal isn't permitted).
What?
Stop talking nonsense, you're making yourself look daft.
Has it gone well for the OP?
This is actually the only problem ive had with remapping to be honest.
Put the stock map back on the car. I would have done this first and foremost. If it still had issues then yes I would have passed it on to bmw or a specialist.
To me you just seem like a middle man. If you were a “proper” remapper you’d have adjusted the file yourself to the car whether it be on the road or on the dyno. I’m not being offensive, just saying things by how you’ve stated them.
Did you check injector tolerances? Bmw diesels aren’t slap and go. You really need to understand them as when they do go wrong it can actually end up costing eye watering amounts.
To me you just seem like a middle man. If you were a “proper” remapper you’d have adjusted the file yourself to the car whether it be on the road or on the dyno. I’m not being offensive, just saying things by how you’ve stated them.
Did you check injector tolerances? Bmw diesels aren’t slap and go. You really need to understand them as when they do go wrong it can actually end up costing eye watering amounts.