Well, I went back out there with two intentions. I had spotted a Mazda 3 wagon there and a friend was looking for a new family hauler so we both went to check them out. Decided to check out the Mazda first, and that is where things went downhill.
We're looking the 3 over, and the salesman says, "Some people took it out this morning, said it rode real nice." The rotors were solid rust. We ask to take it out, salesman refuses to let us both take the car, one of us has to stay, "It's company policy." I take the car, my friend isn't very car savvy.
It vibrates...bad. Real bad. Shocks are weak too, rides almost as rough as my Civic on K-sports. I make it 3 miles to the interstate and as I'm getting on the E36 M3 hits the fan. At about 60mph the engine starts rattling like a con rod snapped, MIL starts flashing, looses all power. I barely make it to the next exit, and in the process of turning around it stalls out 3 times. I eventually make it back to the dealership, it is sputtering and clearly not running on all 4 by now and I park next to my car.
The salesman is waiting for me, and starts accusing me of 'beating on it'. I grab my scan tool to run the codes, I get Cyl 4 misfire, B1S2 HO2S ckt inactive, plus most of the readiness tests are incomplete. This basically means that they had reset the MIL prior to me driving it. The salesman continues to accuse me of damaging the car, and so my friend and leave.
Always bring a scan tool.
Be weary if you happen to be shopping at DJ Auto in Cedar Rapids, IA.
My scan tool has done it's job, I often get asked to check out cars for friends before they purchase, about a year ago I was looking over an 01 Maxima. It had a slight hesitation and the tach did not work, no MIL. I checked the codes and pulled out a laundry list of transmission codes plus a crank position sensor code. How it ran, I have no idea. That dealership went out of business a short while later, but it seemed a little odd to me. I have heard stories of other dealers purposely disabling the MIL, so always be cautious.