I checked my plugs today and they seemed to be in good condition. I may take the ignition module off and have it tested.
Im thinking about buying a OBD2 to usb connector so I can hook it up to my laptop and do my own diagnostics. Check out this link.http://www.topsellings.com/en/can-eo...n&currency=USD.

I'm not familiar with that package. But would be interested in seeing how it works. If you do get that, please post up the results.

It is based on ELM so I give it a thumbs up!

I have a ELM usb to OBD2 interface and it works great for me.