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Fuel Mix possible problem?

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Old Mar 7, 2007 | 06:30 PM
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Fuel Mix possible problem?

Basically its an Odd question about the A/F ratio
I have an A/F Gauge installed Correctly On my Rx7.
And I just now noticed that when I floor it I get This
1St Rich to normal all RPM’s to 7K for all of these
2nd Rich till 3.5k Then Falls off to Lean not Even showing up to 7k
3rd Rich from 4k or so till 4.5k Then lean
4th to 5th same thing But with Varying rpms

I wanted to Know if this was an ECU issue or if it were Normal.
I also Feel a slight loss of power around the times of the Lean Dives.
It also In first when starting off will Dive twice into Lean Making the Car feel as if its slipping.

I have a Walbro Fuel pump bran new. Might be the case I’m not sure. Any ideas?
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Old Mar 7, 2007 | 08:00 PM
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*Bump* Erg
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Old Mar 8, 2007 | 10:04 AM
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Any Help at all would Be great
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Old Mar 8, 2007 | 02:09 PM
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is this a autometer a/f guage? if so they are useless and dont show any good readings at all. they dont use wideband sensors so pretty they just flash around some lites and that about it. if your actually using a real wideband then you may have a issue, is it showings you a ratio#? if so i might be able to help you out.
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Old Mar 8, 2007 | 09:36 PM
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Tis a Narrow Ban, But i can Still Feel the Jumps and Loss of power when these "useless" Drops occur.
ALSO i donno why. My Walbro Fuel Pump Is Seriously Loud
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