I recorded some audio clips of my poorly idling Volvo. Two of them are the engine bay and the other is the exhaust. It is idling very poorly and I am wondering what could cause this issue? The only code I am receiving on my OBD is 121. I can hear a pop noise and when I put my hand on the intake it feels like it is backfiring into the intake. I took the off the hose that connects the exhaust to the intake but it still does it.
Also when installing the O2 sensor, are the 2 white wires interchangeable?
Your help will be greatly appreciated.
[url=http://soundcloud.com/skateandneverdie/idle-engine-2/s-dASwS]Engine 2[/url]
[url=http://soundcloud.com/skateandneverdie/idle-engine-1/s-6ufdc]Engine 1[/url]
[url=http://soundcloud.com/skateandneverdie/idle-exhaust/s-EgTtu]Exhaust[/url]
Thanks,
Garrett
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