It seems they've located the problem. Faulty sparc plug wire. Apparently, the last two times they had the car, they didn't notice the engine running, well, lets just call it 'like complete and total shit' because I think that's a good description. So, one O2 sensor: flaky. That's fine, the car is 8 years old and has 117,237mi. on it. I can see that. Apparently yesterday's service tech replaced the failing sensor, cleared the SES fault, and didn't bother to test the engine other than starting it (the problem doesn't exhibit at lower RPMs, so just letting it idle wouldn't have told them anything either way).
They're doing the 120k service today. Yay, another $300, but that's severely discounted (can you say 'Half?' I thought you could), because they know I'm not happy, and it involves a complete tune-up including replacing the Happy Plug Wires of Doom.
So, supposedly, once this is done, the car's good for another 30k miles before it needs any major service again. I'm still annoyed. This is a $20 problem. If I want to buy the equivalent of Monster Cables for sparc plugs, it's a $50 problem. It took a week, 3 visits, and $600 to find and fix.
They're doing the 120k service today. Yay, another $300, but that's severely discounted (can you say 'Half?' I thought you could), because they know I'm not happy, and it involves a complete tune-up including replacing the Happy Plug Wires of Doom.
So, supposedly, once this is done, the car's good for another 30k miles before it needs any major service again. I'm still annoyed. This is a $20 problem. If I want to buy the equivalent of Monster Cables for sparc plugs, it's a $50 problem. It took a week, 3 visits, and $600 to find and fix.