|
I like super condensed .... Just so that I understand, when you refer to open and closed loop, are you equating that to a functioning FV and a non functioning one ?
Bill,
Missed that one. No, closed loop is when the mixture is controlled by the O2 sensor input. The "closed loop" is, fuel injected-combustion-exhaust O2 content measure-fuel injected adjusted, lather, rinse repeat and so on. Open loop is when the amount injected is not altered by the O2 sensor, it is a default value from a table.
The key point many people do not understand about CIS lamdba is that the FV must be pulsing all the time, under a fixed default value(s) open loop and dithering around stoich when in closed loop. The goal with your motor should be optimum open loop AFR under WOT, decent cold start, then let the lambda pull the mixture back to 14.7:1 for low load part throttle cruise (85% of road driving time) .
You are probably measuring average voltage at the plug which really doesn't tell you anything.
__________________
Paul
|