That could be a possibility I imagine.  One thing I would do is either scan
your car to see exactly what the code you are throwing is.  If you don't
have a scanner, go to an AutoZone (if they have one out there, they do out
here in CA) or another autoparts store the will allow you to borrow an OBDII
(or is your car OBDI?) hand scanner.  See what the code is that your are
throwing.  If the 'check engine light' isn't on anymore, you might try to
see if the scanner they have includes 'freeze data'.  This should also pull
codes that have 'cleared the light' but are still in the PCM.  That should
also be able to give you a lot of different data about the car at the time
the code was thrown.

You might be having MAF problems or an O2 sensor has gone out.  A code scan
would tell you also if you are having any misfires.  But that is where I
would start, get a scan and find out what code you are throwing.