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97 BMW 740i O2 Waveforms
Posted to Emissions Forum on 4/2/2004 1 Reply

Had one in a couple days ago with these scope readings of the HO2S:

[1997 BMW 740i, O2S Waveform]

NO CHECK ENGINE LIGHT on, runs smooth.

Waveforms taken directly at Motronic with engine running fully warm at 2000 rpm.

Any ideas? Login to read more.

Files Referenced:

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