- Mon Jun 20, 2022 9:50 pm
#57465
I’m new to fuel injection and am having some problems. I’m using an NO2C for fuel and ignition on an 810cc Briggs and Stratton V Twin. It is fitted with two throttle bodies from a motorcycle and a 60-2 wheel on the flywheel with a VR sensor and a VR conditioner and that side of it seems to be working fine. However I’ve managed to start it and can only tune small throttle settings as it has no load on it at present. The problem is that after idling steadily for a while the AFR will suddenly go very high and the injector duty cycle drops even though the throttle position and revs are steady.
I’d like to know what is causing this.
Also;
I imagined the AFR target field would be the value read off the table for the revs and TPS position but it sometimes shows values (like 16.6) which don’t appear anywhere in the AFR target table.
Is there a field that shows injector firing better than duty cycle, something like milliseconds open per revolution?
Both exhausts feed into a common silencer where the O2 sensor is. If one cylinder stops firing (due to a fouled plug for instance) will the O2 sensor show a weak mixture due to the free oxygen from the non-firing cylinder even though the mixture is correct?
Thanks for the help.
I’d like to know what is causing this.
Also;
I imagined the AFR target field would be the value read off the table for the revs and TPS position but it sometimes shows values (like 16.6) which don’t appear anywhere in the AFR target table.
Is there a field that shows injector firing better than duty cycle, something like milliseconds open per revolution?
Both exhausts feed into a common silencer where the O2 sensor is. If one cylinder stops firing (due to a fouled plug for instance) will the O2 sensor show a weak mixture due to the free oxygen from the non-firing cylinder even though the mixture is correct?
Thanks for the help.