what does the fuel injection pressure damper do? and will it cause my back fuel? on 1998 Toyota Avalon

this is on a v6

by in Frost, TX on October 23, 2012
2 answers 5 comments
ANSWER by on October 23, 2012
the fuel injection pressure dampers purpose is to absorb the fuel pumps pulsing of fuel into the fuel rail...that way you will have an even pressure instead of a pulsing fuel pressure.
COMMENT by on October 23, 2012
ok well for some reason i am not getting any fuel to the back 3 fuel injectors could a bad damper be the cause?
COMMENT by on October 23, 2012
incidently, fuel pressure is supposed to be 44-50psi. you say the back three injectors are not getting fuel? how did you know? they are under an intake plenum.
COMMENT by on October 24, 2012
because when the car is running i removced all 3 plug wires to the back cylinders and the sound of the motor never changed. i checked the wires to the plug and the are firing at the plugs so there fore it narrows it down to a fuel problem. i can undo one coil pack on the fron three cylinders and the motor dies. so i know the front three are firing and getting fuel.
COMMENT by on October 25, 2012
What do the rear 3 plugs look like when visually inspected? Gas or oil fouled ? Wet , but no smell of gas?
COMMENT by on October 25, 2012
the plugs are dry and have no smell of gas on them. they seemed to have a lil carbon build up on them
ANSWER by on October 24, 2012
ck eng codes and post or scan inj operation or test for pulse at each inj