20 Most Recent 2003 Infiniti FX35 - Page 5 Questions & Answers

Has the switch been tested? When you press the window control switch do you see the doom lights dim just a very tiny bit, if so you need to replace the power window motor.

Fault with a valve sensor ,if you rotate the wheels like you should on a service then this is what happens

Your owners manual will have a diagram of each fuse box and what fuse is for what component, also most of the time on the inside of the fuse box lid will show the same info. Most of the time relays do not go bad, you can find a matching relay that you know works (maybe horn relay) and swap it with the Fuel pump relay. If a fuel pump is working you can hear it when you turn your key to the start position for a few seconds with out starting the car, you might have to go to the rear of the car while some one else turns the key.The best way to take care of this problem is:If you can't hear the pump working you find access to the top of the fuel sending unit or a portion of the fuel pump wire harness and take a light tester and test for power to the pump, if the pump has power and its not working than you need a new fuel sending unit.

1st step get a can of silicone spray & wind down window & spray in both window rails from top to as low as you can. operate windows & repeat. This may free them up.

You need to have the code pulled, then cleared. That should have been done with your diagnostic tests. Many parts places like AutoZone will do this for you for free. It could be something as simple as a gas cap but it could also be more serious like a catalytic converter.
If there is a fuel vapor leak, it will record the same code as a faulty gas cap. That would mean that you need a new filler hose which is where you put the nozzle in to fill up your car with gas. This is a more expensive fix than a gas cap. I am guessing that the code which was pulled suggested a gas cap OR something more serious.
You may have more than one code being recorded. Your best bet would be to disconnect your battery for 20 minutes or so, then drive the car until the check engine light comes on again then take it to have the codes pulled. Those codes sometimes stack up and maybe it wasn't reset after you replaced the cap.