i just figured out , all zeros or 15psi, are from one man test.
if 2 persons, you will see it rises, but since it leaks so bad, you can't see it rise , using only one person.
the car will run with pressure wrong. but with a leak, we cant do the other tests.
the residual test fails (leak down) so the injector balance test can never be done.
you cant do the PFreg tests. either what that leak.
it all makes sense now.
your gauge is ok.
Residual : greater than 25 PSI , after 1 minute. drop test. (spec)
course the pressure must be at spec. first or the drop test is all a waste.
the FPR reg drops pressure about 6psi,running
using these rules.
http://www.fixkick.com/sensors/tests/FPr....html#spec
to find out if the pump is leaking is very hard. as the you can not pinch the pump supply line. (very hard to do)
so we find the leak by checking injectors.
and the FPreg can leak too, but yours is new. so will not leak. (but if you suspected it leaking, you can pinch its outgoing return hose during the leak test to see if it does leak , easy)
the injectors leaking is harder. (bore scope would make this easy) but do the leak down test, with the injectors unplugged
if the leak down ends, bingo bad ECU, (or its wires shorted to ground)
if the leak down still happens, try to see if the fuel is dumping to one cylinder with a flash light shined in to the spark plug hold (plug out)
if you see fuel there, liquid, then that injector is bad (unplugged)
if all injectors do not leak, then that dang fuel pump check ball is bad.
i suspect the pump is ok,
i think it will pass the shunt test at 60psi.
only the leak down failing suggests a leaking injector. this is the only hard problem working on MPI engines, the well hidden, injector tips.
keep in mind we may have 2 problems to fix. very very common.
if 2 persons, you will see it rises, but since it leaks so bad, you can't see it rise , using only one person.
the car will run with pressure wrong. but with a leak, we cant do the other tests.
the residual test fails (leak down) so the injector balance test can never be done.
you cant do the PFreg tests. either what that leak.
it all makes sense now.
your gauge is ok.
Residual : greater than 25 PSI , after 1 minute. drop test. (spec)
course the pressure must be at spec. first or the drop test is all a waste.
the FPR reg drops pressure about 6psi,running
using these rules.
http://www.fixkick.com/sensors/tests/FPr....html#spec
to find out if the pump is leaking is very hard. as the you can not pinch the pump supply line. (very hard to do)
so we find the leak by checking injectors.
and the FPreg can leak too, but yours is new. so will not leak. (but if you suspected it leaking, you can pinch its outgoing return hose during the leak test to see if it does leak , easy)
the injectors leaking is harder. (bore scope would make this easy) but do the leak down test, with the injectors unplugged
if the leak down ends, bingo bad ECU, (or its wires shorted to ground)
if the leak down still happens, try to see if the fuel is dumping to one cylinder with a flash light shined in to the spark plug hold (plug out)
if you see fuel there, liquid, then that injector is bad (unplugged)
if all injectors do not leak, then that dang fuel pump check ball is bad.
i suspect the pump is ok,
i think it will pass the shunt test at 60psi.
only the leak down failing suggests a leaking injector. this is the only hard problem working on MPI engines, the well hidden, injector tips.
keep in mind we may have 2 problems to fix. very very common.
http://www.fixkick.com