Well, I don't have a A/F meter, but I have easy access to my newly installed O2 sensor signal with a digital voltmeter. What readings are acceptable as 'within stock setting' ... the last time i monitored the O2 sensor signal, it would oscillate between .3 and .7 to .8 volts depending on the throttle position, the more open, the richer the mixture. I also keep an eye on the MPG meter, since it is a direct indicator of how much fuel is being injected, which is very strongly affected by the signal from the MAF, right?
so for the same circumstances, i would expect that the MPG meter would read higher values (better economy) if I tighten the MAF, right?
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