I cannot express how much I hate this Bosch injection system, such crap in my opinion. If it was good, it wouldn't be the longest thread or most written about subject on these cars.
Sorry, my opinion, but Lotus really blew it on this decision as well as a few other decisions on the 88 model year.
Curious to the specific parts about Bosch CIS you don't like? I've had a car with Bosch CIS (Scirocco) for over 100K miles without any problems.
That's why I picked an Esprit with Bosch CIS - familiarity and reliability. I've got 61K miles on my 88 (31K I put on myself in 31 months) and the Bosch CIS (even at 26 years old) has been bulletproof.
Lastly, my wife's friend has an 83 Scirocco with Bosch CIS-E with 347K miles (yes, three hundred forty seven thousand) with the ORIGINAL Bosch CIS injectors, lines, etc - pumps may have been replaced at 180K). It's still driven to this day AND passes stringent California smog regulations.
Sure, other people may have had Bosch CIS problems, but it's not due to any inherent design weakness. If there is a vacuum leak, it can be a bear to diagnose if you're not familiar with it. And unlike electronic fuel injection, it doesn't easily take to mods (MRDANGERUS is the exception here
The main problems in 2014 are:
1. Key parts are hard to find now
2. Most people don't want to bother to learn how an obsolete FI system works
3. Not many people are familiar with diagnosing Bosch CIS - they're all old (like me) or dead