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Author Topic: UEGO problem  (Read 234 times)
Brian87gt
EMS Poster Child
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Posts: 3
« on: November 18, 2009, 10:28:15 AM »
Just yesterday my UEGO started acting up on me. At startup it climbs to leanest reading (---) and stays there. I checked the sensor using the brake cleaner in a rag test, and it tested fine. Then I unhooked the sensor and the gauge read 14.8 (the guy at AEM said that meant the gauge was good). I checked the voltage at the white wire and when the gauge read m ---, the volts was around 5. So obviously the sensor is telling the gauge it's lean. I don't have any exhaust leaks, and no catalytic converters. Any ideas? Thanks
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trbo2dr
100+ Post Club
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Posts: 113
« Reply #1 on: November 25, 2009, 10:23:55 AM »
i don't think the brake cleaner in a rag is a definitive test for sensor function.  sounds to me like your sensor is going bad.
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I use the Paris Hilton tuning method: rich and retarded.
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