2005 INFINITI FX35 Engine Problems

I CHANGED THE CAMSHAFT SENSOR BECAUSE IT GAVE ME AN ERROR CODE SINCE MY CAR WAS TAKING TOO LONG TO TURN OVER. THAN THE SLIP AND VFC OFF LIGHT CAME ON AND MY CAR WOULD JERK AND THE BRAKE LIGHT WOULD COME ON AND IT WOULD JUST STOP COMPLETELY. THAN I CHANGED A COIL AND THE OIL. NOW THE OIL IS COMPLETELY EMPTY WITHIN 2 WEEKS. AND I'M CONSTANTLY PUTTING GAS AND IT'S LIKE THE GAGE DOESN'T WORK. BECAUSE SOMETIMES IT'S COMPLETELY FULL AND THE GAGE WILL READ HALF TANK. NOW IT'S GIVING ME ANOTHER CODE AND SAYING THERE IS A MISFIRE. IF I TURN THE AC ON THE SHAKING IS WORSE AND IT SMELLS HORRIBLE.

TL* THE CONTACT OWNS A 2005 INFINITI FX35. WHILE DRIVING, THE VEHICLE WOULD NOT PROPERLY ACCELERATE AND THE RPMS AND SPEEDOMETER INCREASED ALTHOUGH THE ACCELERATOR PEDAL WAS NOT PRESSED. DURING THE FAILURE, THE VDS AND SLIP WARNING SENSORS DISPLAYED. THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE LOCAL DEALER AND MANUFACTURER WERE NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 161,000.