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Hi! Please I need some to put me through. I just purchased a 2003 fx35, though a used one, it accelerate fine when in parking and the acceleration meter raises above 4 down, but when I put on driving it gives poor acceleration, gear selects fine but car drives heavy and slow on the road that all car passes me and if I press down the acceleration on that motion hardly the acceleration reading meter raises above 2 ,don't raise up to 3mtr, and it's makes me have pains on my foot cause I press the acceleration pedal hard but it gives poor movement. What cloud be the issue?
 

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2004 Infiniti FX35
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I can only guess and give you a few ideas.
1 the car is in what they call limp mode or safe mode.
2 the snow mode switch is stuck on.
3 the valet is turned on.
 

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Is the service engine soon (ses) light on? If so, you will have to pull the codes from the ECU to determine the likely cause. Vex is probably correct that the car is going in to limp mode. The code will help you track down the problem.
 

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biggest issues with driveabilty I have found with these cars is usually caused by MAF sensor or a CAS.But yea have oreillys or autozone pull the codes and post them.
 
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