Question about Infiniti Cars & Trucks
to make sure the fuel pump is operating get in a quite place get in vehicle and turn ignition switch on position you should hear alittle buzz for about 2 seconds try this several times if no buzz is heard then the fuel pump is not running. check fuel pump relay in power box by switching relay with one of same type thare should be one of same type in the box if not then purchase one and try it. If the pump is ok then you know you have a firing problem. check to see if you have spark by taking one of the spark plugs out then hook spark plug wire to it lay it on engine and look for spark while someone turns the ignition switch as if trying to start car
Posted on Dec 18, 2008
There are a few other things taht could be causing fuel starvation. First of all, did you pull the injectors and clean out the individual filters? There are small, conical screens inside the top of each injector, and they could be clogged. Second, There could be some carbon build-up on the intake valves, which would act like a sponge for the fuel after initial start-up. A can of BG44K fuel system cleaner from NAPA will get rid of that. If it is neither of these, the fuel pressure regulator could be leaking. Other than this, the car would need to be diagnosed by a shop before action is taken. I hope this helps you!
Posted on Dec 04, 2009
Testimonial: "I ended up taking the car to a local shop for diagnosis. It turns out that the fuel pump is week and not supplying enough pressure to the motor. "
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