You should never remove anything till you pin point the failure.
If the low pressure pump failed. It starved fuel to the injector or high pressure pump. That alone will burn out the pump.
You said you replaced the lift pump and now have fuel to the injector pump? Then the injector pump most likely has failed.
Replace the pump. You wont get credit for the core unless you re assemble it.
Tuesday, November 22nd, 2011 AT 2:15 PM