Sifus, Tried to find the answers to this questions for some time now.Was thinking of getting my ride "Unichip", however how does this compared to remap? Anyone out there that has done this? Appreciate your sharing. If our ECU can relearn after remap, then is the whole process of remapping pointless after 2 -3 days? Finally, is there any value to further install a piggyback ECU after remapping done? Thanks for your advice. :top:
Piggyback Vs Remap
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absidian
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Depends on your E36 production year.
To remap, OBD1 requires a chip replacement in the ECU.
Later OBD2 models will be a straightforward re-program.
Piggyback has its limitations, remap is best. ECU's re-learning is limited within pre-defined boundaries in the ECU parameters. Those parameters are changed during a remap, along with other parameters that aren't learnable.
These are only general rules - how much of the ECU that is actually remapped will depend on your chipper's experience.
Hope this was useful.
To remap, OBD1 requires a chip replacement in the ECU.
Later OBD2 models will be a straightforward re-program.
Piggyback has its limitations, remap is best. ECU's re-learning is limited within pre-defined boundaries in the ECU parameters. Those parameters are changed during a remap, along with other parameters that aren't learnable.
These are only general rules - how much of the ECU that is actually remapped will depend on your chipper's experience.
Hope this was useful.
