Here are a couple of fuel injection manuals that you may find helpful:

http://www.amazon.com/exec/obidos/ASIN/0837603005/bmwworld/002-6835081-0428835

http://www.amazon.com/exec/obidos/ASIN/0879385707/bmwworld/002-6835081-0428835

I have both books and they seem to complement each other. Of the two, I've found the Watson book to have more practical how-to and diagnostic tips for sorting out problems.

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