V6 Check engine and TCS lights stay on

Hi all - yesterday I did an oil change (Valvoline high-mileage) and replaced the front rotors on my V6 (72,000 mi), something I'd done several times before on this car and others. Didn't have any difficulties, went very smoothly. On the way back from my buddy's garage where I did the work, I put some regular unleaded in from a station I'd never used before.

Very shortly after filling the tank (I've checked to make sure the gas cap is tightened properly), my check engine light came on (and stayed on after turning it on/off), and the traction control indicator light came on this morning on the way to work. It's not always on when I start the car, but goes on after a few minutes running; once it's on, it won't turn off by hitting the manual TCS switch, even on bone-dry roads.

I have a couple questions that I'm hoping someone could answer for me (checked the forum and didn't find any topics like this one) before I go take it up the arse to get this fixed:

a) Can a rotor replacement screw with the TCS sensors (bearing in mind I've done this before and never had problems)?
b) Is there a chance that this TCS problem could make the computer throw up a code to check engine?
c) Should I try a hard reset of the computer by removing the negative battery connection for a few minutes and see if the problem reappears?

Obviously I've considered that this may all be a coincidence, but I've never had any of these issues in the 65k mi that I've owned the car for, so for them all to occur within a day of doing the maintenance makes me wonder. Thanks in advance for any help.

Argyle wrote:
> Hi all - yesterday I did an oil change (Valvoline high-mileage) and
> replaced the front rotors on my V6 (72,000 mi)

.. . . .when I start the car,

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If you're in North America (you said miles), I'm guessing it's a
relatively new Honda Accord (you said 'car') ?

Get the codes read. Don't try to reset anything until you write them down.

'Curly'