Air fuel mixture ratio in a petrol engine is 14:1 or 14 parts air to 1 part petrol.
Is this an absolute rule yes and no.Sometimes say under load your engine needs a richer mixture say under full throttle but overall it needs 14:1
An oscilloscope connected to the secondary ignition can see the mixture by the amount of voltage in KV needed to fire the cylinder
Remember this is independent of sensors and ecus or live data making it a very powerful tool
here comes the rub effort is needed to put an interpretation on the waveform it wont tell you
Tel:07891903013
Is this an absolute rule yes and no.Sometimes say under load your engine needs a richer mixture say under full throttle but overall it needs 14:1
An oscilloscope connected to the secondary ignition can see the mixture by the amount of voltage in KV needed to fire the cylinder
Remember this is independent of sensors and ecus or live data making it a very powerful tool
here comes the rub effort is needed to put an interpretation on the waveform it wont tell you
Tel:07891903013
lunar auto diagnostics
Full range of engine fault diagnostic services
Contact us for help
125,east bawtry road
Rotherham
south Yorkshire
s60 4lq
Rotherham
south Yorkshire
s60 4lq
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