Fuel Injector Mis-fire

[Smithmj54]

I have a 1993 Camry XLE V6. I take very good care of the car. I just replaced the cap and rotor, wires, spark plugs, radiator, ERG valve, PCV valve and all new fuel injectors. The reason I replaced the fuel injectors was because one of them siezed up and wasn't firing. I replaced them about 1,000 miles ago and I only have 137,000 miles on the car. Today I was driving and I belive another injector just went. It's doing the same thing before when the last injector went. When I start the car the you can hear and feel the engine mis-firing. It's almost undrivable. Does anyone have an idea why the injector keeps failing?

[Black95Cam]

did you check the fuel rail to see if suppling sufficient enough gas/pressure to the injectors?

[abew330]

did you change the fuel filter?

[abew330]

try some fuel injector cleaner.. personal i like bg 44k injector cleaner. its a bit more expensive

i believe seafoam has a product i think a lot of guys use it

do you drive on "E"??? there might be a bunch of dirt at the bottom

[Smithmj54]

I don't think it could be the rail because only one injector keeps going bad. I'm taking my tank apart today and replacing the fuel pump and screen. When I do that I'm gonna flush out my tank for anything that might be in there. I clean my fuel injectors w/ the STP injector cleaner every oil change and that doesn't work. I'm stumped on why it's the same injector going. Good thing these things are under warranty.

[Stillrunning]

Are you sure the injector is getting an electrical signal? Any debris in the tank will be captured by the fuel filter. Why change the fuel pump when you have no indication that is the problem. Why don't you switch the bad injector with another and see if the problem moves or stays on the same cylinder.

[Smithmj54]

Getting pressure in my gas tank due to the fuel pump losing pressure and finally getting around to fixing it. So hopefully that will help.

[Stillrunning]

Originally Posted by Smithmj54

Getting pressure in my gas tank due to the fuel pump losing pressure

????

[DFBonnett]

As Stillrunning noted, the problem may well be a lack of signal to the injector. At this point you may want to swap two injectors to see if the problem moves with that particular injector. If it does, then you know that new injector has failed. If the problem persists in that same cylinder, then you have to check the wiring to that injector as well as the ignition components for that cylinder. A noid light which will illuminate with each pulse to the injector would be useful.

[Smithmj54]

I used the noid light the other day and it was getting an electrical signal. I didn't have time to pull the injector out. I just dropped the car off at the mechanic this morning and I'll let him figure it out.