Nope, O2 sensor only ignored at WOT - Saab 900 Bulletin Board - Saabnet.com
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Nope, O2 sensor only ignored at WOT
Posted by JohnK (more from JohnK) on Thu, 26 Jul 2001 13:11:41
In Reply to: Re: idle long, RS
[Profile/Gallery]
, Thu, 26 Jul 2001 11:29:08
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At idle, the O2 sensor is working and is in fact what is sending the ECU the mixture signal-closed loop. Ever notice how a 900 with a bad AMM idles all over the place until the O2 sensor warms up and settles things down. When an O2 sensor is shot or unplugged the idle will have no variation, more evidence of O2 sensor operation at idle.
At WOT the mixture is controlled by the AMM only and not O2 sensor-open loop.
Posts in this Thread:
- idle long, Richard M., Thu, 26 Jul 2001 02:03:20
- Re: idle long, RS
, Thu, 26 Jul 2001 11:29:08 - Re: idle long, Josh, Thu, 26 Jul 2001 09:56:37
- When hot or cold, or always? Probably normal,, Bill U, Thu, 26 Jul 2001 09:16:36
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