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When your check engine light first goes on, pull over, turn off your car and leave it off for several minutes before restarting. This should give your engine management system enough time to reset. It is safe to drive your car with the check engine light on so long as no other engine problems are apparent, but you must still get your car to your repair shop for a checkup as soon as possible. A delay in proper check engine service could cause damage to your catalytic converter. Do not take your car to a parts shop that offers check engine light service.