01/08/2010 - 01-18-2010 - Minimum Lift Adjusted
03/10/2010 - 04/02/2010 - Intermediate Levers and Shafts Replaced
03/16/2011 - 04/09/2011 - Crankcase Vent Valves and Spark Plugs Replaced
04/14/2011 - 05/20/2011 - Intermediate Levers and Shafts Replaced Again, Warranty Replacement

Looks like you still have converage/warranty for this issue until 04/14/2013, do not pay for any of future repairs up until 04/14/2013. If they want to charge you for anything to fix the check engine lamp, or misfires, alert your service advisor that you will be consulting your attorney for breach of warranty contract. You should also request that the $50 deductible paid on 03/16/2011 - 04/09/2011, to be refunded.