You are correct, it does provide power to the KE unit so the car can enter a closed loop environment, but the car will still start and run in open-loop mode -- Something that most people consider a blessing! Limp home mode will get you home!

I checked for any fuel leaks and I neither see nor smell anything.

I guess my best option is to replace the EHA then the fuel distrib with a spare? I couldn't believe all 6 injectors failed at the same time.

Possibly the plunger too? Although it seemed to depress without any sort of binding...

I'm just wondering if the fact the car was close to the red line had any influence on this or just coincidence...

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k