This sounds like the float bowls running low at WOT (wide open throttle).
I have a 3wire sensor in my down pipes too and have found that standard
springs and needles are pretty much spot on in a BJ8 spec.
AlanB - iPhone message.
> On 13 Oct 2014, at 03:55, goldengt@cal.net wrote:
>
> I have had my three wire O2sensors and AirFuel meter for quite a while but
now thought I have the time to do something about the readings.
> I have a mostly stock BJ8 with Kirk headers, 10%ethanol. With stock needles,
I cruise one meter segment LED rich at sea level and at 2000 feet, the next
richer meter segment is flickering. Not so bad, I guess. The faster I go, the
richer I get in a gradual manner. However, when I climb a hill during the
cruise at around 70mph, the meter goes dead lean (one LED from zero). It
usually shows completely lean at hard acceleration also.
> 40mph cruise gives the same one LED rich as at 70.
> So should I get some weaker springs first or try for a needle that tapers to
rich faster after the cruise?
> The web stuff I see says to try the needles.
> Ken Freese
> 65 BJ8
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