I wouldn't put my money on itturbotim said:wouldnt it be better to spend the 1000$ and buy a aem stand alone fuel managment system or a f conv pro? wouldnt your car be faster in the long run with less work.
There's a couple of things here if think.I was going to buy the CAN usb tomorrow, if anyone can possible enlighten me in anyway possible.
The BDM is ECU out of the car and connected to the computer. It can only be used to overwrite the flashchips (permanent memory) in the ECU.Ok, I think I get it. Bear with me....
1) A BDM can be used to save the ECU and tune the ECU-but not in car/live?
Canbus can be used for both. Live tuning in RAM (non-permanent memory) as well as reflash it (write flashchips like BDM but a little more risky).2) A CAN usb can be used to tune the ECU live, but will only work for one session, then when the car is restarted it must be reloaded as RAM will be lost?????? What do you mean by reflash again? Why doesnt the first flash remain permanent?
The ECU has RAM (non-permanent) and flash (permanent) chips. RAM is cleared when the ECU is disconnected from the battery while flash is retained. Flash contains the program while RAM contains the working info for the ECU.3) I though these motorloa m19 ECU's had only ram (2mb), there was no other place to "write" in-meaning when you tuned the car you wrote to RAM. I dont get what you mean by static/needing to reflash.
Unlocking is just flipping one byte in the ECU program, so the ECU has to be flashed after that (through BDM or through CANBUS). T5Suite has this option in the firmware information dialog.4) When you say "unlock" the ECU, is this automatically done by t5suite? or do I need to do that weird thing with the BDM and code in delay times for processors and stuff whilst in DOS?
Don't do this on your daily drive ECU.... see that you get a spare one from the scrapyard or from fleebay.5) Lastly, I really want to do this with my one and only ECU. Is this really unwise, or can it be donw with relative safety?
np...!Thanks, sorry for the questions;oops: