We replaced fuel pump in 1998 camry and it still wont start power is running to and from injectors and pump.

Did you change the sensors yourself? If you did you need to reset the computer. Disconnect the both cables from the battery. Hold them together for 3 minutes. This will discharge the memory in the engine control module. Reconnect the battery and start the car. Let it run for a few minutes then drive the car so the computer will "learn" the new sensors. If the engine still won't start then there is another problem such as fuel pump or not enough fuel pressure to the injectors.

fuel pump relay

Hi Dress, Have a diagnostic inspection carried out and at the same time ask for a new fuel filter to be fitted. After that has been done ask for a fuel pressure test to be carried out on the fuel pump. It should be 3.4 bar and if its lower it requires replacement. Regards John

Try the fuel pump relay, and if you know for a fact that you fuel pump is functioning ok replace the fuel filter seeing there is no gas going to the injectors. Other that that I think it might be you fuel pump.

have the ecm checked and wires to the injector if not the cause have you replace injectors gm's tbi have lot of problems with them

Being that you have a 1998 Toyota Camry, these cars are fuel injected and shouldnt need the gas pedal depressed to feed fuel to your engine. It's possible you may have a dirty fuel pump or dirty injectors. Here are some possible steps (cheapest in $) so follow these in order to spend less money.
- Run some Lucas Fuel System Cleaner (green cap bottle), do two treatments of that in your gas tank and see if that makes a difference. Dirty lines and clogged injectors are caused by cheap gas and or constantly running on Empty thus allowing fuel pump to pick up sediment from bottom of gas tank.
- Sputtering could also be worn spark plugs (too big of a gap) and or faulty spark plug wires or both.
-Timing chain issues usually occur if you hear a constant vibration near the top of the engine.
-Transmission issues would be having trouble putting the car in certain gears, or the transmission stick does not sit in gear properly (slippage).

Just some suggestions that may help with your problem.

misfire can also be cause by stop up fuel filter or clogged fuel injectors or weak fuel pump pressure.

blown ecm fuse or bad fuel pump

well, check all ofthe fuses. fuel pumps dont "start going bad" they either work fine or not at all, so you wont have to worry about that just yet. consider replacing the fuel filter, and running a health dose of B12-Chemtool or some other kind of high performance injector cleaner every single time you put fuel in the car. this stuff works better if you start using super octane for a bit too.

Change fuel pump relay.And check the fuses