DIY AfC?

[Xren17]

I was thinking about it and I was wondering why not make your own AFC. I mean you can measure the rpm and the air/fuel ratio. All you need to know is the voltage to send to the ECU and that can be extrapolated from the air/fuel gauge. Then you can use a laptop to play around with the settings until you get it to how you want it. Finally just burn it onto an EPROM with a mini circuit board and you're done. Am I missing something here? Do you need to know throttle position such as at WOT. If I overlooked something, let me know.:help

[cyrus240sx]

you also have to monitor coolant temp since when you first start up the vehicle you have to run the car a little fatter than normal and yes you need to monitor the tps to set idle and mixture at idle... and partial throttle mixture settings and WOT settings..... more complictated than most ppl can do

[cyrus240sx]

oh and you didnt even start to get into timing..... you also have to be able to control that... i wouldnt even know where to start

[deviousKA]

MegaSquirt

[Xren17]

deviousKA, thanks for the info. Now I don't have to reinvent the wheel. This thing looks awesome and you get to learn in the process. AWESOME!!!!!!!