Does the fpl pid change from low to not low with the key on?
Yes, the FPL PID changes from LOW to NOT LOW when commanded from the scan tool .
Also,I did a few more tests today :
1.Took a fuel sample of the high pressure fuel rail and I could see on the bottom
of the black spray cap some very,very fine(almost dust ) metal particles
2.Replaced the fuel pressure regulator (FPR) - the old one had a little rust on it
3. While cranking the fuel rail pressure was going from 0 to 115psi and when the cranking stopped
it went back to 0 psi.
4. Pinched the injectors return line - made no difference in the pressure either with KOEO or cranking
5. Unplugged the FPS and the PCM defaulted to 31,200 psi - again no start
The Lift pump is NEW and the engine mounted filter has been replaced.
Is the HPFP gone already or there is some massive leak which prevents even to build up any minimum pressure with KOEO?
Any additional tests I should try ?