Well, I replaced the fuel pump and flange. The job was quite straight forward and took only 30 minutes (ran the fuel to the reserve beforehand). Overall the car runs and idles better, but when I kicked it down a gear on the freeway the car went into limp mode again. Perhaps the Bosch high pressure pumps? Is there a fuel pressure sensor located anywhere? Same code - P0087 - Fuel Rail System too low.

 

I’m having the same issue do you know where the bag ground was traces too?

 

I never traced the ground - just replaced the two pieces (pump and top part with the connectors) and cleaned up the electrical connector a bit - started right up. Sorry I couldn't be more help - I did have the same question, but turned out to be unnecessary in my case