Thread: Remapping EU2 motors - a word of warning

Originally Posted by td5inside

Can you get an hold of a nanocom?

Thank you

I've located someone with a nanocom. Wat should I do?

So,....after reading all 16 pages of this thread, and I must say a BIG to OffTrack (Paul) , I have come to the following conclusion(s) and would just like someone to perhaps confirm my thinking or steer me in the correct direction.

I have a 2000 D2 TD5 Auto with ACE. (currently MSB ECU) VIN SALLTGM93YA28xxxx
I have a Nanocom Evolution
I have an NNN ECU (NNN500030) from donor D2a TD5 Auto.

Now the tricky bits. I don't want (cost prohibitive at this point) to change AAP or pedal.

So for me to install this NNN ECU,...
I need to read the current map from the ECU, to make sure it hasn't already been remapped (which I doubt), and to retrieve injector codes. Correct?
Then I need to download the correct map file from Map Generator, being NNN500030, sutdp014-suhde036.map. Correct?
Then swap out ECUs and using Nanocom to allow new ECU to sync security. Correct?
Then install downloaded map to new ECU. Correct?
Then reconfigure injector numbers. Correct?

And this should (with fingers crossed) now work without any mysterious/ghostly fault codes. Correct?
And this may give me a marginal improvement in performance/economy/drivability. Correct?
And to gain a little more improvement (later) I should remove the muffler and install a D2a intercooler. Correct?
And to get even better performance (at a later stage) a remap utilising the existing EU2 map file. Correct?

How do I change the VIN?
Can I change the VIN?
Do I need to change the VIN?

Do I need to connect battery charger, as I read somewhere, is there that much drain?

Sorry for so many questions and I'm hoping I have assimilated the information correctly, but I can't afford to stuff this up and have this thing on tilt tray to a mechanic.

I have read quite a bit from a search of this forum and other places and this is the best information I have found. Just need to get it straight in my head. If there is any other information about my car that is required, just ask.

If, by some miracle, I have all the above correct and there are any other tips or tricks then please let me know.

And if we ever meet in person Paul, more than happy to shake your hand and purchase you a beverage of you choice.

Still in awe of this forum, it's members and the knowledge.

Do I need to connect battery charger, as I read somewhere, is there that much drain?

When I remapped my EU3 , I bought a 20amp 12volt power supply from Jaycar, which is really 13.8 volts and connected it to the primary battery.
.

I have considerable voltage drop on my Optima battery when I turn on the ignition , down to just on or under 12 volts, so yes I think there is a large drag of current, maybe to energise the capacitors in the ECU, and someone has suggested that the glow plugs are lit even if the light is not on.

Seeing the danger is bricking the ECU, I think it was money well spent.

Regards Philip A

mate get the injector codes with the Nanocom then swap ECU put your injector codes into new ECU and you should be on your way

Got an 99 D2 td5 with an NNN ecu, had an MSB ecu and got an Td5inside one and plug it in and change the injector codes and synced the security code, took less that 5min and off it went

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Originally Posted by Chook1961

So,....after reading all 16 pages of this thread, and I must say a BIG to OffTrack (Paul) , I have come to the following conclusion(s) and would just like someone to perhaps confirm my thinking or steer me in the correct direction.

I have a 2000 D2 TD5 Auto with ACE. (currently MSB ECU) VIN SALLTGM93YA28xxxx
I have a Nanocom Evolution
I have an NNN ECU (NNN500030) from donor D2a TD5 Auto.

Now the tricky bits. I don't want (cost prohibitive at this point) to change AAP or pedal.

So for me to install this NNN ECU,...
I need to read the current map from the ECU, to make sure it hasn't already been remapped (which I doubt), and to retrieve injector codes. Correct? : nanocom won't read msb map , just retrieve injector codes.

Then I need to download the correct map file from Map Generator, being NNN500030, sutdp014-suhde036.map. Correct? :yes

Then swap out ECUs and using Nanocom to allow new ECU to sync security. Correct? : yes
Then install downloaded map to new ECU. Correct? : yes
Then reconfigure injector numbers. Correct? : yes

And this should (with fingers crossed) now work without any mysterious/ghostly fault codes. Correct? : yup
And this may give me a marginal improvement in performance/economy/drivability. Correct? : yep
And to gain a little more improvement (later) I should remove the muffler and install a D2a intercooler. Correct? ya
And to get even better performance (at a later stage) a remap utilising the existing EU2 map file. Correct? si

How do I change the VIN?
Can I change the VIN?
Do I need to change the VIN? : no , only the ecu vin will be required regarding NNN remapping

Do I need to connect battery charger, as I read somewhere, is there that much drain? : a good battery fully charged should normally suffice , not much drain once the fuel pump switches off and glow finishes its cycle which is short after a good run to fully charge battery, you can also hook another large same type battery up via jumper leads if you have one ( obviously good and fully charged as well :-)

Sorry for so many questions and I'm hoping I have assimilated the information correctly, but I can't afford to stuff this up and have this thing on tilt tray to a mechanic.

I have read quite a bit from a search of this forum and other places and this is the best information I have found. Just need to get it straight in my head. If there is any other information about my car that is required, just ask.

If, by some miracle, I have all the above correct and there are any other tips or tricks then please let me know.

And if we ever meet in person Paul, more than happy to shake your hand and purchase you a beverage of you choice.

Still in awe of this forum, it's members and the knowledge.

alternatively you can ask td5 inside to supply an eu2 remap but in your case you would fit the NNN to your car to read the map first.
oh and I tried to answer your questions in red but that didn't work obviously

Originally Posted by discorevy

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alternatively you can ask td5 inside to supply an eu2 remap but in your case you would fit the NNN to your car to read the map first.
oh and I tried to answer your questions in red but that didn't work obviously

Thanks for the answers, just needed to confirm what I'd read. In regards to the battery I have a Redarc solenoid connecting second battery and have installed a push button override in case of flat starter battery. Would pressing this button for the duration of the flash be sufficient to maintain enough voltage? Don't want to "brick" the ECU, not cheap to replace.

Originally Posted by Chook1961

Thanks for the answers, just needed to confirm what I'd read. In regards to the battery I have a Redarc solenoid connecting second battery and have installed a push button override in case of flat starter battery. Would pressing this button for the duration of the flash be sufficient to maintain enough voltage? Don't want to "brick" the ECU, not cheap to replace.

no you don't want any voltage spikes, so either jump the solenoid or the push button , or even jumper leads between batteries, you'll have enough to do without holding a button in