My 2005 Tribute, V6, has virtually no power from take off
I've taken my tribute to a local mechanic who performed fuel pressure and volume test, exhaust back pressure test, inspected for vacuum leaks and checked knock sensor operation, and checked static timing check, all with no problems. He checked fuel pump pressure that was 42 psi. I had already changed out the mass air flow and throttle sensors. I took to a local mazda dealer who diagnosed a bad bad fuel pump, saying it was only performing at 26-32 psi. Changed out the pump, and still didn't solve the problem.
