Yes, check the connection. While servicing mine I had knock one lose and got the same code. If you can pull it away without pressing in on the clips this will cause your problem. Just peel back the rubber that covers the connection to be sure you get it seated and locked back in. Then push the rubber cover back over the connection. Might as well change your plugs to if have at least 60K on the clock. Pelican Parts is a good source and the have reasonable prices.
