I have a 00 toy Avalon that recently has lightrd up the check engine light, i am not a very mechanichally inclined person , the car doesnt seem to be running any diffrent than when i baught it a few months ago it has 135k I recently did an oil change any suggestions as I dont watto be taken advantage of at a shop here in San Antonio tx any ideas???please Help.

call the shop and ask them about it. they will probably schedual an appointment so they can check it out. ("CHECK engine light")