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Running too lean?

Originally Posted by FailsafePerf IMO the most accurate way to measure a/f is from a wideband sensor in the test pipe or high flow cat. If putting them in the

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Running too lean? Running too lean?
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Old 12-26-2009, 07:54 PM   #11 (permalink)
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Originally Posted by FailsafePerf View Post
IMO the most accurate way to measure a/f is from a wideband sensor in the test pipe or high flow cat. If putting them in the cat, make sure the sensor is ahead the actual catalyst.
Thing is, my FI test pipes have a J-shaped bung to fool the sensor in some way as to not trip the CEL, so that will require me doing custom work which I don't think would be worth it.. or would it?

Are sniffers completely off? Seen a few local Turbo Z's do it.
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