My Corolla has the check engine light on. The gas cap was loose, so I
tightened it and the light remains on. Assuming that was the problem, how
long does it take for the computer to figure out the gas cap is on and
tight?

--
Buy Bonds!

"offen rong" <offen rong (AT) member (DOT) org> wrote

starting the engine from cold and driving it until the engine has reached
operating temperature.

Another posted suggested removing the negative battery cable. This also
works but you will have to reset your radio stations and clock.
--
Ray O
correct the return address punctuation to reply

If the gas cap was the trouble -- this is the odds-on favorite, by the
way -- then it will eventually go out by itself.

You can go to an AutoZone Parts Store, and they will connect the scan tool
and reset the light for free. This will verify that the gas cap is the
trouble.




"offen rong" <offen rong (AT) member (DOT) org> wrote

Usually by the next fillup. If not, the sensor may have to be re-set.
THis is covered under warranty.

On Thu, 3 Nov 2005 19:00:58 -0500, "offen rong" <offen
rong (AT) member (DOT) org> wrote:

<Whatsup (AT) hotmail (DOT) doc> wrote

The light was still on after numerous start and stops of the engine and
driving about 40 miles, so I removed the negative lead on the battery for
about 15 minutes, reconnected, and the light went out. I drove about 2
miles and the light remained out. If it comes on again, I'll drop by the
Toyota dealer. The engine has run fine during this time, and no smoking from
the exhaust or any other symptons. Thanks for all the tips on what to do.