Thanks. I'll check the engine note. Looked at the code page which looks similar to what the haynes manual was saying, I'll see if I can figure it out. That code 6 sounds like there is a range of areas where the problem could be (distributor ciruit, distributor, igniter, starter signal circuit, ECU). Does anyone know how you go about troubleshooting? Car is running pretty well - might be best to leave it?