I am posting this for a friend that works in the same garage as me. He
serviced a 1987 420SE V8 after the service he road tested it and all was
fine. When the customer came to collect it, it refused to start and was
found not to have a spark at the plugs. He has changed the ignition
amplifier and checked the obvious but is still the same. Do these have any
blink cods that can be accessed to help with finding the fault. Or is there
a common fault that gives this problem..
Thanks In advance Ken.