The fuel pump is located inside the fuel tank.
The fuel filter is mounted underneath the intake manifold and is a pain to get at. I've read/heard that removing the front passenger-side
wheel and fender liner makes for easier fuel filter access (I've only ever changed one by bending my arms at awkward angles
from above).
However, fuel delivery issues tend to manifest at high engine speeds, not immediately upon acceleartion. A "quick and dirty" check for a fueling issue
is to remove the vacuum line from the fuel pressure regulator? (usually located on the pipe feeding the fuel injectors). If the problem changes when
your remove that vacuum line (which simulates maximum engine load and drives fuel pressure to? maximum), then you likely have a fuel pressure/volume issue.
Instead, I suspect you still have an ignition quality/timing issue. Given you've replaced the cap, rotor, wires and plugs, the remaining likely culprit is
ignition timing control. If you have a 49-state engine with a vacuum-controlled distributor, make sure the vacuum lines are properly hooked up.
If it's anything more complex than a missing/misrouted vacuum line, you should probably have a professional mechanic diagnose the exact cause
(or follow the factory service manual diagnosis procedure yourself, if you're at that level of mechanical aptitude. The items you've already replaced
are inexpensive and are maintenance/wear items, anyway. If you need a new distributor or ignition control module, those are expensive so you
should be reasonably sure they're faulty before shelling out the replacement cost.
Good luck
Buzz L.
Phoenix, AZ
Former '86 Dolphin, '89 HiLux, and '96 Tacoma owner
