Hello, I have a camaro that will not run. I turn the key and it will turn over many times before the battery is too weak. The gas has been sitting in the tank for 6 months unused. On the dash, when I crank it, I have no oil pressure, although I just changed the oil and filled it up to the proper level. The security light on the dash is not on. I took a spark plug out and held it against a grounded metal piece but no spark during crank. 6 months ago I cranked it up and drove it into my garage with no problems any ideas? Its driving me crazy

thanls