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+--- Thread: Siemens ECU remap? (/showthread.php?tid=7719)
Siemens ECU remap? - Pete - 06-11-2012
Do any of the well known mappers (Whippy,Pro-steve ect) Do remaps for the siemens ECU? I was gonna wait until I had a FMIC sorted but thats gone tits up so I'll settle for a stage 1 for now. Seen a tuning box for sale on .net but I'd rather have a remap TBH. Dont think I can just swap the ECU for a Bosch one as the vans wiring would be a PITA!
Cheers, Pete
RE: Siemens ECU remap? - Eeyore - 06-11-2012
youd have to ask them! both nice guys im sure!
RE: Siemens ECU remap? - Poodle - 07-11-2012
I don't think there's many about that can map the siemens unit tbh, seem to remember people having problems finding a mapper at all, let alone on the forum.
RE: Siemens ECU remap? - Midnightclub - 07-11-2012
Think TB 'may' be able to, if not, i wonder how hard it would be to swap it over to a Bosch ECU
RE: Siemens ECU remap? - samass - 07-11-2012
probably quite hard to swap it, arent these multi plexed?
RE: Siemens ECU remap? - DaveW - 07-11-2012
Think you may have to change the lot, pump injectors etc....
Siemens ECU remap? - Pete - 07-11-2012
Cheers guys. PM'd whippy a while back he said he was looking into it, not heard back since though..I know of one place (rs tuning) but they're pricey!
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RE: Siemens ECU remap? - Ruan - 07-11-2012
It's genuinely easiest to switch to a Bosch system, injectors, pump, ecu and wiring loom, just pull it all off a 3plug Partner van and that should work fine...
RE: Siemens ECU remap? - Toms306 - 07-11-2012
Wouldn't you need the key/ignition/locks and everything for the immobiliser as well though?
RE: Siemens ECU remap? - Midnightclub - 07-11-2012
Depends on whether or not the ECU is unlocked IIRC
RE: Siemens ECU remap? - HDIkyle - 07-11-2012
Was going to say can try my stuff off the hdi but would need a new loom as that's what is causing problems on mine
RE: Siemens ECU remap? - Mr Whippy - 08-11-2012
Siemens are a pain to do.
You can't read them via OBD to see what is on there, so writing always feels a bit risky.
Even writing you need to turn the ECU into boot mode.
So it's an ECU out job ideally to write them, and possibly a solder job if you want to see exactly what is on the chips before you write.
Also it's Siemens so a bit harder to remap, not as simple as a Bosch any way.
I do plan to get around to offering a tune on them but it's a big investment in time/kit to possibly do not many cars, and people with these now don't like to pay much money... it makes it a hard business model to justify, so it has generally sat on the back burner vs stuff that can make me a living unfortunately...
Almost all tuners just buy in files for these cars but I don't want to offer that. I either want to offer a proper tune I understand fully and know is good, or not offer anything.
Dave
Siemens ECU remap? - Pete - 08-11-2012
Cheers Dave, I know I won't make much sense for you to plough time and money into a very limited market..that's fair enough! Might just chance a tuning box tbh.
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RE: Siemens ECU remap? - Mr Whippy - 08-11-2012
If people think a swap over to a different ECU is a viable path to go down then it's worth looking at, merely just to add up costs/complexity.
If you can swap over and sell the old bits and end up £150 down for example, it's cheaper than a tuning box, and an RS Tuning remap or similar, and then you have the run of the re-map market from whoever takes your fancy.
I'll have a look again in a few weeks at how all the Siemens read/write stuff works. Once you know how to get data on/off easily that is most of the battle. Sat on a computer on a night staring at the binary is relatively easy as enough staring and it starts to fall into place
Staring at an ECU or a load of wires however doesn't make it work haha.
Dave