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Originally Posted by nitroxx  I agree with the closed loop feature, however we can have a map that runs closed loop to a certain point and then goes into open loop mode right?.. my other question relates to the fact that..the performance map would handle fuelling,but how would It improve efficiency (only with a map)?Or is this where part throttle tuning comes in? |
You need to tune in open loop first, get as much readings as possible on different road conditions like in traffic, while cruising & wot runs.
Take readings in hot climate in afternoon & in late night when its cold,
also if possible take the car to some high altitude & take readings and tune accordingly. This is where wideband comes in to picture.you need to have that installed in your car hooked up to a standalone to get readings.
once you are done tuning your fuel/ign map in open loop, then you should set back your ecu to run in closed loop, up to a particular load point decided best by your tuner. once it crosses that particular load point & RPM you can tune your same map for max perfomance to redline.