check for low fuel pressure (its critical) with guage on schraeder valve on fuel pipe on rear of engine in cab drivers side , should be around 55psi
Yes, it's possible. I had two leaky injectors in my '96 Sunfire. Replaced the O rings to no avail. I ended up replacing the two injectors even though inspection showed no damage. The fuel leak was fixed.
Fuel injectors need to be replaced every so often. If the fuel injectors are not working, they may be too old, and need to be replaced or put in properly.
When you replaced the injectors, did ou also replace the O rings? Are the injectors seated down in there OK? Try twisting the injectors a little after you've seated them
How about the plug wires? If plug wires don't fix it I'd bet it's the injectors.
They can be replaced, avoiding the necessity to be 'bored out' .
The original fuel injectors on that model were recalled - did you ever have them replaced?
Your injectors stopped working because either they have failed and need to be replaced or else there is inadequate fuel pressure to open them.
Maybe two of them were replaced with aftermarket ones at some point in its life.
A malfunctioning fuel injector pump will cause the injectors to not fire properly. The fuel injector pump will need to be replaced.
Unscrew them , & repalce , usually only the nozzle is replaced .
They only need to be replaced if they cannot be ultrasonically cleaned successfully. Or if they are faulty and don't work at all. The BA Falcon has a self cleaning strategy where the injectors are pulsed quickly to help clean injectors stay clean. Factors affecting fouled injectors include fuel quality, mileage of vehicle (high and low), fuel system servicing and if LPG fitted also.
i dont know what is wrong with it . it gets fuel to the tbi but it wont spray through the injectors at all I had an 88' Silverado that did it too. I replaced both injectors on the TBI and it worked fine. The injectors cost me about 50 bucks each.