I know this is probably sheer coincedence, but I had my plugs and wires replaced a couple of weeks ago at 90k miles. About two hours later after picking it up, I threw two codes...an oxygen sensor and the knock sensor. I cleared them to see if they would come back. Neither has come back.
Last Monday our Tuesday (about two weeks ago) I was approaching a turning lane red light and coasting down to a stop. The car shut off and the SES, oil, brake, and battery lights came on simultaneously. However, this time it cranked right back up and went on about my business and was going to monitor it.
On Thursday, I was on the way to eat with some co-workers and the same thing happened only this time it would not start back up and hold idle long enough for me to get it into gear. I also noticed a faint burning smell. It would start, I could rev the RPMs, but as soon as I took my foot off the gas, the car would stall. No idling whatsoever. I had it towed to a local Firestone service center (screw the Stealership) and they diagnosed it as a mass air flow sensor since this time there was a code for the MAF. They tried cleaning it and no luck, so we replaced it. Never got to the root cause of the burning smell.
Well, I picked it up today and the mechanic told me that it will run, but there is still something wrong with it and he doesn't know what (That makes one feel good huh!). Sure enough, when I went to crank it, the car did the same thing. However now if I rev the gas enough and "warm things up" (for lack of a better term) it will eventually idle and I can shift into drive or reverse.
For some reason when the engine sits and gets cold, it is not wanting to start and hold an idle. I have no idea what is going on, the Service Center doesn't either, and I have no codes to point me in the right direction.
I bought this car to commute 110 miles roundtrip to work each day and have only had it for 20k miles. This is not a good sign for the vehicles' reliability. I've owned 5 Toyotas (currently a Tundra and Sequoia) and have never had a problem with my Toyotas. I don't know what to do but I count on this car for my work commute. Luckily I've got a couple days to get it worked out next week since I'm on vacation, but I don't want to throw hundreds of dollars at a car that I only spent $7k on to try and diagnose the problem. At this point, no one knows whats going on.
Someone with any mechanic or similar experience please help. Thanks!!!