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Old 07-21-2003, 07:35 PM   #1
dpjef
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Member#: 18984
Join Date: May 2002
Location: Belgium
Vehicle:
2002 Impreza 2.0
dark blue

Question lambda readings / ignition timing

Hi all,

Don't know much about these things (yet) so please enlighten me !

02 sensor :
My lambda readings are between 0.69 and 1.49 but that seems a bit odd to me. Shouldn't lambda be between 0.90 and 1.10 ? I have read that ideal lambda is 0.90.

Ignition timing :
have seen timing between 0 and 47 . Isn't that also a bit 'conservative' (knock correction is ONLY -0.5)

(ps. it's for the n/a Impreza)
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Old 07-21-2003, 08:16 PM   #2
Legacy777
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Join Date: Mar 2001
Chapter/Region: TXIC
Location: Houston, Tx
Vehicle:
1990 Legacy & 97 OBS
AWD 6MT EJ22T AWIC Swap

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O2 readings should be between 0.0 & 1.0.

Timing will vary for engine load & rpm....so it's hard to say where it should be. Usually you check it at idle to verify everything is fine.
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