A binding gas cap can cause the Check Engine Light to illuminate. Replacing the filler neck is needed for this repair.
2002 Honda Insight Problem Reports
RepairPal Verified 2002 Honda Insight Problem Reports
The Check Engine Light may illuminate due to an evaporative emission control solenoid failure. This is more common in areas of the country where salt is used on the roads during the winter.
Integrated Motor Assist (IMA) battery failures are not uncommon. The IMA battery will require replacement when it fails.
The automatic transmission (CVT) can have a "shudder" due to a worn start clutch. Replacing the start clutch should correct this type of shudder condition.