Injectors for 1989 honda accord removing and

Detach the cable from the negative battery terminal (if you have an anti-theft radio, make sure you have the code to reactivate it.).
Relieve the fuel pressure (take the gas cap off, and loosen service bolt at the top of the fuel filter; you will need two wrenches for that, on to hold the fitting and the other to loosen the nut; make sure you have a towel or something to catch the gas spill). You could, instead, just SLOWLY loosen the pressure line at the right end of the fuel rail (facing the car).
Remove the air cleaner assembly (take the top off, take out the filter, detach all hoses, take out retaining bolts, and remove).
Unplug the injector connectors (CAREFULLY detach the clips first; just pry them back out of their notches; try not to pop them off and drop one, they are hard to find once dropped).
Detach the vacuum hose and fuel return hose from the fuel pressure regulator (left end of the fuel rail, if you are facing the vehicle)
Detach the two ground cables from the intake manifold (in the middle, under one nut)
Detach the fuel lines (already did left one; detach the pressure line at the right end of the fuel rail).
Remove the mounting nuts (four) and detach the fuel rail and injectors from the intake manifold.
Remove the injectors from the fuel rail and remove and discard the seal rings (top and bottom; the second ring down on the top is the cushion ring and does not need to be replaced, but it is recommended. Most kits contain them)
Coat the new o-rings with fresh oil and slip them on the injectors (or, if you are replacing the injectors they probably came with o-rings on them. Just coat them with oil)
Place each injector into its corresponding bore in the fuel rail (doesn’t matter which is which if you are replacing them all).
Coat each new bottom seal with oil and press it into the injector bores in the intake manifold.
Install the injector and fuel rail assembly on the intake manifold. Make sure the centerline of the electrical connector on each injector is aligned with its corresponding mark on the intake manifold (little arrows, I think). Tighten the fuel rail nuts to the specified torque (17 lbs)
Reverse removal procedure for the rest.
After all is done, turn the ignition on, but do not start the car. This will build up pressure in your fuel lines. Do that two or three times, then check to see if you have any leakage around the injector, or other fittings, before you start the car.
Then you’re done.
Hope this gets you through it.