An oldy, but a goody. Back in ancient history, this was how we had to check our A:F ratios while still using narrow band O2 sensors. This is still a good way to monitor the a:f if you don't have a wideband installed.
The unique thing is that it's driven from the 12V plug and you don't have to install anything permanently in the vehicle, except adding an O2 bung to the exhaust.
$250 + shipping
The unique thing is that it's driven from the 12V plug and you don't have to install anything permanently in the vehicle, except adding an O2 bung to the exhaust.
$250 + shipping
