I started 7 years ago after a main tuner refused to do my ecu because it involved 'soldering', i started commercially about 4 years ago, and i've still barely scratched the surface in a lot of areas :lol: NAV2016 Posts: 6 Joined: Fri 5:27 pm Location: Wakefield I'd certainly be prepared to give it a go if I knew which areas of code to edit correctly. If I opted to do my own, i.e delete the egr and dpf functions from the ecu, do you think I could learn to do this or does it take years? I've got no problem with the physical removal of the filter in the exhaust having been a semi skilled mechanic in the past but i'm not sure about using WinOLS and identifying then changing the nessessary codes. I rate the MPPS very highly but I use the genuine one, I do beleive some vauxhalls can be a bit funny with the OBD read areas though.ĭakta Posts: 71 Joined: Thu 10:09 am Location: wakefieldĭakta wrote:You've essentially got it, you download the file using the programming tool, which will give you either a full readout of the ecu or a partial readout, depending on the type of ecu fitted and what it supports which will *usually cover the areas needed for modification. *I say usually because some cars give readouts that don't cover everything needed for tuning, some vauxhalls ive heard of this happening in which case for MPC processors a bdm tool to force a full read on bench might be more appropriate. if not, it can vary from 'try again' to visiting a tuner anyway with a sheepish expression on your face.

once you've got a modified file though writing is just the reverse of reading. Once you've read the ecu, it's up to you how you get the file modified, some tuners will insist you come to them, some might be willing to sell you files or you might opt to do your own. It's complex with few rules so you learn on a case by case basis. Not all ecu types support full read, some do but only accept a partial write etc. You've essentially got it, you download the file using the programming tool, which will give you either a full readout of the ecu or a partial readout, depending on the type of ecu fitted and what it supports which will *usually cover the areas needed for modification.

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