GolfGTIforum.co.uk
General => The garage => Topic started by: Wazzzer on 28 July 2011, 18:20
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Am I thinking you'll be able to do my custom map (standard MAF and injectors) in a day?
Think the main problem with mine is the N75 control as you mapped it differently due to my bent actuator lol
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Am I thinking you'll be able to do my custom map (standard MAF and injectors) in a day?
Think the main problem with mine is the N75 control as you mapped it differently due to my bent actuator lol
I know the n75 map on your car is set to compensate the hardware issues you had. But I would start a map from scratch again, with the emulator I can easy map it in a day not matter what maf / injectors ect... But as long a the hardware is ok.
This week I have a track spec golf agu running the ko4-023 setup, if came in Monday for custom dyno mapping, but after spending most of the week sorting the issues and getting the car to run safe, at 4pm today I managed to get a base map wrote for the car.
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Without trying to point out the obvious.. but surely it would be better to replace a known faulty part (esepcially an actuator) rather than leave it in situ and map around it?
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I had absolutely no boost at all and the actuator was doing nothing. Also my MAF was shot so it was a no go for the mapping session last time I went up which was a Saturday. Nick kindly set it up so I could at least drive the car taking the kids out and going to work. I live quite a long way from R-Tech so just popping back wasn't gonna happen.
That's good news Nick cheers, I'll give the office a bell and get booked in for probably start of Sept when the missus goes back to work. I'll try and make sure everythinng is spot on before I come up this time too lol
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Without trying to point out the obvious.. but surely it would be better to replace a known faulty part (esepcially an actuator) rather than leave it in situ and map around it?
It has been replaced, the n75 I-pilot map can only really be setup based on the actual actuator spring pre loads. The reason why going over 86nm causes the stock n75 map to ride off line. IMO all cars with 70k will need unique map tweaks even on stage 1 mapping I am having to compensate for weak springs so the car makes quoted power. The car in question had a bent actuator and a weak spring, the customer drove close on 300miles on s Saturday afternoon last year to have his car mapped, but due to the hardware issues I custom tuned the car to get him by, until the hardware was sorted. A year on the car in theory is going to be custom mapped again to match the current hardware setup, or a spring load of around 110nm. But being a 500mile round trip for the customer he wants to make sure it goes to plan this time.
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Without trying to point out the obvious.. but surely it would be better to replace a known faulty part (esepcially an actuator) rather than leave it in situ and map around it?
That would mean every wastegated turbo car with over 70k you remap would need to have a new actuator fitted some costing £200 fitted... But if in 99% of cased if you could the best way forward would be compensate for the weak spring, after all this is what real mapping used to be about, tuning the software to match the current hardware setup up as every car will react different way even if the same generic map is used. I am constantly making map updates to my generic maps to flow with the time and keeping on top of the golf 1.8t tuning game.
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Without trying to point out the obvious.. but surely it would be better to replace a known faulty part (esepcially an actuator) rather than leave it in situ and map around it?
That would mean every wastegated turbo car with over 70k you remap would need to have a new actuator fitted some costing £200 fitted... But if in 99% of cased if you could the best way forward would be compensate for the weak spring, after all this is what real mapping used to be about, tuning the software to match the current hardware setup up as every car will react different way even if the same generic map is used. I am constantly making map updates to my generic maps to flow with the time and keeping on top of the golf 1.8t tuning game.
This is one of the main reasons we offer at base clients (esp with1.8t's) a free pre-remapping dyno session where we check the car is fit to remap, if not we make the client aware of any underlying issues they need to get sorted prior to remapping.
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Sorry I wasn't arguing the toss over generic vs custom mapping (although I don't agree entirely with your comments anyway). It wasn't clear to me that his actuator had been replaced.
I am well aware of the N75 issues on vag's, but if someone is mapping to compensate for a faulty part.. what happens when the car is sold on for example and the new owner unwittingly replaces a part which has probably completely failed by then? If some variables have been pushed too hard to compensate for a faulty part, which is then replaced with a good working part.. well you can see where I am going.
This is why (in my opinion) having a pre set known quality map developed on a healthy car is the way forward. If then the subject car does not produce the same/similar figures you can go about diagnosing to ensure the car is healthy.
Totally agree that pre map diagnostic is key, that's just the basics. But if on a pre diagnostic you determine a part is faulty, it's not really a good idea to map the customers car (even if you know how to map around the problem).
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The key word here is custom mapping.. the car in question also has a bigger turbo fitted.
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Sorry I wasn't arguing the toss over generic vs custom mapping (although I don't agree entirely with your comments anyway). It wasn't clear to me that his actuator had been replaced.
I am well aware of the N75 issues on vag's, but if someone is mapping to compensate for a faulty part.. what happens when the car is sold on for example and the new owner unwittingly replaces a part which has probably completely failed by then? If some variables have been pushed too hard to compensate for a faulty part, which is then replaced with a good working part.. well you can see where I am going.
This is why (in my opinion) having a pre set known quality map developed on a healthy car is the way forward. If then the subject car does not produce the same/similar figures you can go about diagnosing to ensure the car is healthy.
Totally agree that pre map diagnostic is key, that's just the basics. But if on a pre diagnostic you determine a part is faulty, it's not really a good idea to map the customers car (even if you know how to map around the problem).
Once you start writing maps and understand how Motronic ecus works then you will sure be thinking in the same line as me.
Its the i-pilot n57 control map which will need to be lifted for a 1.8T with a weak acuator, to compensate for a weaker spring with 70,000 miles on it. If the customer or the new owner then fits a new oem actuator then the car WILL still be 100% fine and the ECU pid controllers will see the over shoot and learn to the n75 cycle to keep the boost in range. As this is what the Bosch pid system is about.
Trust me once you start to learn Bosch M ME MED mapping you wont want to stop.
I have all the Bosch tech PDF docs related to all the cars which we tune on this forum, the docs state every map what they do and why, the links they have with other maps, and how to map them. Ie to map and log timing the knock sensors need to be switched of in the binary to allow a true ignition log, theory egt are based on real time testing. Just for 1.8T the PDF is 1800 pages long and Tfsi 2400 page. If you want a copy and start to lean pop me an email and I will send you them.
copy from another forum I am on.
If your actual boost is not meeting requested boost, you may have to increase the PID I limit between 2250 and 5000 RPM for 850 and 1000mBar:
KFLDIMX - LDR I-Regulator limit
To go along with KFTARX above, there is another IAT correction that ME7.1 uses to allow the PID to add waste-gate duty cycle at elevated IATs. You may want to zero it all out:
LDIATA - LDR I-Regulator limit as a function of IAT
If you aren't using K03s, you may have to tweak the PID response. Note: this is NOT used to adjust requested boost. It is used to compensate for different waste-gate responses.
KFLDRL - Map for linearization of boost pressure = f(TV). This is the post-PID waste-gate duty correction table.
LDRQ0S - LDR PID Q0 in static operation (proportional term)
LDRQ1ST - LDR PID Q1 in static operation (integral term)
KFLDRQ2 - LDR PID Q2 (differential term)
KFLDRL can also be used to get open-loop type behavior for operation past the MAP and requested boost limit by making the output duty cycle unresponsive (flat) to uncorrected duty cycle (from the PID) at various RPM/DC points. Again, if you do this, make sure to leave DSLOFS at the stock value! This way, requested boost will always be higher than measured boost, and you will stay in open loop control.
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Yeah I guess I would have been fine if I'd just fitted a standard actuator but I fitted a Forge item. Just to add my car was already stage 2 mapped for the AGU K03s combo before I went up to see Nick. I had just noticed it was very laggy since fitting the new turbo and the actuator was found to be the culprit. Also my MAF was shutting the boost down as it was reading totally wrong so mapping was aborted. I'd tied the journey in with a visit to Inters so not all was lost, still went home with my tail between my legs though. I know not to give the car any stick until it's sorted out. All this on a Saturday afternoon....
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Fingers crossed you'll come away with the results you were after :wink:
Sorry to drag your post a little OT btw but we're all passionate about what we do :wink:
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No worries mate, interesting to see everyone's opinions on stuff :wink:
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No worries mate, interesting to see everyone's opinions on stuff :wink:
Have you phone up yet? :grin:
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I do remaps aswell Wazzer and mine are the best.. they must be.. i bought them from ebay ??
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I do remaps aswell Wazzer and mine are the best.. they must be.. i bought them from ebay ??
From someone who had a 190bhp+ mini and didn't realise it was tuned. So going by your tack record your BUTT dyno is crap!!!!! Lol
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Ermm the mini was an exception and you loved it when you took it for a drive :tongue: :tongue: :tongue:
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I do remaps aswell Wazzer and mine are the best.. they must be.. i bought them from ebay ??
R-tech are on ebay :rolleyes: :laugh:
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I do remaps aswell Wazzer and mine are the best.. they must be.. i bought them from ebay ??
R-tech are on ebay :rolleyes: :laugh:
Didnt even know that :laugh: :laugh: :laugh: :laugh: :laugh:
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I do remaps aswell Wazzer and mine are the best.. they must be.. i bought them from ebay ??
R-tech are on ebay :rolleyes: :laugh:
We are not up for sale?? Lol
Been on there many years now and in the early days it was really good. 99p remaps.... But for a booking slot only. eBay is stuffed now cannot seem to get any ranking or good positions, seems I need 1000s of eBay feedback.
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No I bloody forgot AGAIN :cry:
Got too wrapped up in taking my headlining out lol
I'll phone Monday for definite, I'll expect a cheer when I say it's me :grin:
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No I bloody forgot AGAIN :cry:
Got too wrapped up in taking my headlining out lol
I'll phone Monday for definite, I'll expect a cheer when I say it's me :grin:
If not I will borrow my mates dd rolling road and come to you.. :-)
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now that would be fun :wink:
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Now booked in on the 5th of Sept :smiley:
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Now booked in on the 5th of Sept :smiley:
My only day off!! :grin:
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lol don't you dare :grin:
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lol don't you dare :grin:
:grin:
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Bought some Hobnobs this evening and stashed them away ready
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Wat turbo you having mapped mate
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K03s, nothing fancy. Taking my red injectors and VR6 MAF up too, just in case lol