Date: Wed, 31 Mar 2004 21:24:40 -0600
From: "strung" <>
Subject: '92 900S Check Engine Light Driving Me Crazy...

Any help would be appreciated. Fault Codes: 12223 - Air-Fuel Mixture Too Lean 12241 - Air-Fuel Mixture Fault 12111 - O2 Circuit Problem... Over the last year I've replaced: - O2 Sensor (2X with's 900 86-94 Universal Oxygen Sensor) - Wires - Plugs - Fuel Filter - Dist Cap - Rotor Can't locate any vacume leaks. DVM on O2 Sensor indicates voltage comes up to ~0.5 volts at turn on then promptly returns to 0V. Telling me engine is running, Lean? Questions/Comments/Recommendations?

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