Hi Ian and Mike, to quote Mike "We all have regular hassles with customers saying "since you did this, that isnt working" or that wasn't doing that before" etc etc"
Before engine management, I was involved in mobile tuning and diagnostics, ( Dwell, Timing, Mixture,etc, all adjustable). Customer telephoned to say car not pulling as it should be after I had tuned it. Returned to re-test and noted punctured tyre, explained to customer that this would cause a sensation of low power, and that all settings were correct. Customer responded "Huh,-- never had a puncture till you tuned it". True story, I had to walk away, Tom