thanks for the help...engine running rough warm or cold. New plugs, 0-2 sensor, fuel system cleaned, changed oil, nothing shows on computer (codes), timing seems to be ok. Just happened all of a sudden, engine quiet, no ticks/clicks/groans. Help!!!!:banghead:

thanks for the help...engine running rough warm or cold. New plugs, 0-2 sensor, fuel system cleaned, changed oil, nothing shows on computer (codes), timing seems to be ok. Just happened all of a sudden, engine quiet, no ticks/clicks/groans. Help!!!!:banghead:

Has the fuel pressure been tested? I believe that should have a vacuum operated fuel pressure regulator. Check the vacuum line from the FPR to the intake manifold for fuel. If you find fuel in that line, the fuel pressure regulator has ruptured on you.

Pete