Originally Posted by
opposite lock
Is it common for cruising conditions AFR to be above 14.7 by mappers, on say the webber ecu,s ?
Interesting thread .
Mike
If its a closed loop (lambda) ecu then it should held 14.7 anyway as it should correct, if its not then its not uncommon to run slightly leaner as you get better economy if you go just a touch leaner than that.