Long overdue update: I’ve been following the Bentley’s Manual religiously. The first step for measuring fuel pressure is to remove the driver’s seat and check the DME relay. With the ignition key off, I measured 12 v at terminal 30 using the post and nut securing the ECU to the floor as the ground. With the ignition switch on, I measured 12V at terminal 86 using same post and nut as the ground. I confirmed ground at terminal 85 by measuring 12v at terminal 86 again but using terminal 85 as the ground. I also measured 12v at terminal 87. With the engine cranking I measured 10.xx volts at terminal 87b using same post and nut as ground. When checking for the presence of ground at terminal 85b, I measured 8.xx volts at terminal 87b using terminal 85b as the ground. This difference in measured voltage suggested to me that the ground at terminal 85b was flawed.
The ground connections to the engine were corroded and the heat shrink was brittle and flaking off. I cleaned off the connectors and replaced the heat shrink. Unfortunately, that was not the problem and it still doesn’t start. I’m in the process of measuring the FP today and will update shortly.
