Originally Posted by
steveo
dual widebands are total overkill.
FAST makes a dual one that's affordable though, that's what i have. it's not a great unit, but it works. the fact it's a 'dual' helped me quickly detect when I had a clogged injector, that's all. you don't have much per-bank balancing control above idle anyways, so seeing the banks independently is fairly useless.
eehack always logs both inputs no matter what, you can graph both together or display both in the dashboard no problem. but the analyzer only analyzes one at a time (whichever you have selected in settings). i will add something to 'average' them soon.
wideband spoofing sounds good but never works well. narrowbands work better for sticking around stoich, and the ECM wont get the response it wants from the nb simulator, it'll throw your afr all over the place. you'll want to install your wideband in a separate hole, have an o2 bung welded in.
if you're talking leaning it out at cruising speed or running AFRs different than 14.7:1 at anything but WOT, o2 spoofing and such is irrelevant, you'll need to run open loop. your narrowbands won't do anything. unless someone hacks it in, $EE doesn't really have the capability to run open loop just in certain zones of operation.
i run full time open loop myself and i've deleted my narrowbands and their wiring. closed loop is fine for emissions and self healing, but open loop is certainly more versatile, unless you think engines have optimal performance running stoich outside of wot, which isn't really true.
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