Alright I've searched through the forums a little bit and haven't been able to find this... I'm pretty useless when it comes to working on cars (slowly learning) but, luckily, I have a bunch of friends who are really into DSM and a bunch of friends who know a lot about cars in general. One of my buddies is helping me with tuning my GVR4 because it's running rich. I just want to know what the most popular way of pulling wideband O2 readings is on my car? Sorry for the stupid questions, as stated above: I'm useless.