So I just installed a speedhut gauge with an AEM wideband and at idle, the AFR is all over the place. It ranges from 15-16.5 while idling and flutters within the same range while cruising.
Under WOT, it instantly goes to 11.9-12 and stays there until I let off so I know it's working. FWIW, the 02 bung is also welded before the cat on the driver side of the midpipe.
I've searched, and the only potential cause I can think of is a vacuum leak. Anyone have any suggestions on possible causes? Is it dangerous to have the car idling/cruising? I'm at least happy to see a good AFR at WOT...
Edit: videos added
[nomedia="http://www.youtube.com/watch?v=BCqpJzrfTT8"]August 22, 2011 9:24 PM - YouTube[/nomedia]
[nomedia="http://www.youtube.com/watch?v=jy7HATlt8d0"]August 22, 2011 9:16 PM - YouTube[/nomedia]
Under WOT, it instantly goes to 11.9-12 and stays there until I let off so I know it's working. FWIW, the 02 bung is also welded before the cat on the driver side of the midpipe.
I've searched, and the only potential cause I can think of is a vacuum leak. Anyone have any suggestions on possible causes? Is it dangerous to have the car idling/cruising? I'm at least happy to see a good AFR at WOT...
Edit: videos added
[nomedia="http://www.youtube.com/watch?v=BCqpJzrfTT8"]August 22, 2011 9:24 PM - YouTube[/nomedia]
[nomedia="http://www.youtube.com/watch?v=jy7HATlt8d0"]August 22, 2011 9:16 PM - YouTube[/nomedia]
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