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Btw, no offense taken.. And, you are right.. Some of the DIY kits aren't that dependable. It's only good enough for fun datalogging, probably not good enough to tune an engine; espeically when it costs more than an arm and a leg. I finally got my wideband sensors hooked up and running.. I am thinking about buying new sensors now. The used one seems to have slow response time and the calibration is a bit off too; signs of aging O2 sensors. Now, I wish I have a dyno to run through the whole fuel map.Regarding force induc. engines, you should install a few exhaust temp. sensors on your header. With wideband O2 sensor, ex. temp sensors, you can tell very precisely how your engine is running. It's also critical to see if it will meet emission too.Now, one thing that is hard to do is the knock sensor. I have some signal captures of the knock sensors output the stock ECU and it looks like the output of a microphone (and it should).. You can tell there are a lot of noise in the signal and front bank sensor would pick up the front bank 3 cylinder's combustion event as much stronger signals than the opposite 3 cylinders. Now, I am beginning to trace the circuit on the stock ECU and it looks like it may be a simple filter that's trying to narrow down the particular frequency of a knock. I will do some more traces later of the processed signals and see if the circuit is indeed focusing on particular signals only.For those in the future willing to attempt a Motec install, I will put my current M800 setup file and my wiring diagram online somewhere. This file will allow anyone to install a Motec (or other programmable EFI computers) and start the car up right away and let it idle. I wished someone had done that for me in the first place.. Would've save me 3 days of work. more to come later..eddy
Btw, no offense taken.. And, you are right.. Some of the DIY kits aren't that dependable. It's only good enough for fun datalogging, probably not good enough to tune an engine; espeically when it costs more than an arm and a leg. I finally got my wideband sensors hooked up and running.. I am thinking about buying new sensors now. The used one seems to have slow response time and the calibration is a bit off too; signs of aging O2 sensors. Now, I wish I have a dyno to run through the whole fuel map.
Regarding force induc. engines, you should install a few exhaust temp. sensors on your header. With wideband O2 sensor, ex. temp sensors, you can tell very precisely how your engine is running. It's also critical to see if it will meet emission too.
Now, one thing that is hard to do is the knock sensor. I have some signal captures of the knock sensors output the stock ECU and it looks like the output of a microphone (and it should).. You can tell there are a lot of noise in the signal and front bank sensor would pick up the front bank 3 cylinder's combustion event as much stronger signals than the opposite 3 cylinders. Now, I am beginning to trace the circuit on the stock ECU and it looks like it may be a simple filter that's trying to narrow down the particular frequency of a knock. I will do some more traces later of the processed signals and see if the circuit is indeed focusing on particular signals only.
For those in the future willing to attempt a Motec install, I will put my current M800 setup file and my wiring diagram online somewhere. This file will allow anyone to install a Motec (or other programmable EFI computers) and start the car up right away and let it idle. I wished someone had done that for me in the first place.. Would've save me 3 days of work.
more to come later..
eddy
