is there a way of resetting a engine light after repairs are done. I
replaced the dpfe after getting the code read and the car is running a lot
better so I believe I fixed what was wrong. do I need to go somewhere to
have it reset or is it just a matter of time before the computer recognizes
that it has been fixed and goes off automatically? if it helps its a 2001
se US 2.0 zetec.
I've asked that question, here, too, and never gotten a response--at least
not a response on how to reset it.
I also have a US 2001 Zetec. Somewhere in your owners manual, it says how
long the reset takes to occur after a problem is remedied. I think it's
something like 3, 4, or 5 full "start cycles" where a start cycle means
starting with a cold engine and warming to operating temps for a while. So
assuming you did fully correct the problem (I also had to have my dpfe
replaced--engine light "on" and minor stumbling at speed), it could easily
be close to a week before the light resets on its own. Multiple starts
within a day may not start with a cold enough engine for the computer to
consider it a valid start cycle--it's that first start of the morning and
running the engine up to temp that helps--so 3-5 days or so are the minimum
to reset your light automatically. Assuming the car runs well, I'd only
begin to worry if the light's still on next week at this time. Good luck.
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