is it the fuel pump? how many pounds of preasure does or should it put out and there is n shrader valve to test the presure.
help meI have a 94 sunfire that is sputtering and really boggy. i change the fuel filter and it has gotten worse.?
Here is what you do...
Set that ************ on fire. And then shoot at it!!! Laughing maniacally!!! GO NUTS!!!!!!!!!!!!! GO NUTS THERE TOUGH GUY!!!!!
And then... peepee on the charred GM chassis and look at it like you're dirty harry from the movies. You know... that smoky clint eastwood face. Look at it like that.I have a 94 sunfire that is sputtering and really boggy. i change the fuel filter and it has gotten worse.?
You should get about 20 lbs of pressure on the fuel rail and with the engine off, it should hold. (run it first)
could easily be the fuel pump or a clogged vent system. If you remove your gas cap does it run better?
Could be clogged injectors.
If you have an auto parts palce nearby, have them pull the codes for you off your diag port.I have a 94 sunfire that is sputtering and really boggy. i change the fuel filter and it has gotten worse.?
When you ask a question, be sure to include the type of motor as it makes a difference in the answer and in this case it does. If you don't have a shraeder valve at the motor area, you will be running a four cylinder and that would make this a TBI which means the fuel pressure at idle will be 12-15 psi. If this is a V-6 motor, there is a schraeder valve and it runs at 35-45 psi. It could be the fuel pump and you are right in trying to diagnose it first as this is a costly and time consuming job. If you get the pressure and it is not right, you will have to change out the pump and in-tank strainers. If it is not the pump as in the pressures are good, I would have a throrough look at all secondary ignition outputs and the condition of the wires, coils, and spark plugs and make a determination from there. Good luck.
