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Howdy shitters, I felt like doing a car related post to take my mind off the shocking lack of progress on actually doing anything to my chod recently. My mind is full of all sorts of shite, some useful, some not. Included in this is a pretty good understanding of how more primitive diesel engine management systems work, and how to suck out the digital nectar, make the numbers bigger and put it back for some GLF. So in this thread I will attempt to lay out some of this in a way that will make it possible for others to follow. 1. DIS SHIT IS DANGEROUS YO. I mean, probably not really, but what I'm saying is that there is a small risk of turning your car's brain into a permanent vegetable and I will not be held responsible, obvs. 2. The how to bit is primarily aimed at VAG TDIs in VE pump and PD FLAVA. This is because the map editing is well catered for with an excellently written and fairly easy to use freeware program. If you're keen to do something similar with another type of engine I can try and help, but finding the maps etc is a lot more work. 3. Do not EVER flash a file off the internet onto your car if you'd like to use it again. Get your original file, save it somewhere safe and make modifications to your original file and flash that - small differences in software or hardware versions can lead to the consequences in point 1. I'll "reserve" the next 2 or 3 posts and edit them as and when I get a chance to include the following: Theory - how your ECU decides how much to squirt and when Reading and writing - recommended tools for how to read your car's brain Modding - a quick guide to doing a "Stage 1" type map on a suitably shitey engine like a 90hp TDI with veg-tastic VE pump.