On my car I have replaced spark plugs, wires, distributer, coil, #5 fuel injector, crank sensor and now the car is running ruff and sluggish, it back fires and pops. You can have the pedal to the floor and will hardly go anywhere. Please help been putting a ton of money into the car and going nowhere.

 

Is the SES on?

 

You indicate that you replaced all those parts, and now its running poorly. Was it running OK before you replaced them? If so, why did you feel the need to replace the parts?

Have you had it scanned? Have you had the fuel pressure checked?

 

You want to check and make sure all the plug wires are connected correctly.