about two months ago when i started my fx35 i notice the my suv was shakingright away i new the motor was misfiring than service engine soon came onwent to a friends garage he made a scan and these are the codes that came out p0300 multiple cylinder misfire nex 1000 dtc phase service manual andp0021camshaft timing my fuel economy has dropped a lot my fx35 burned half a tank of premium gas to do 100km that's horrible to me my friend he cleared the codes to see if the misfire would come back but so far haven't had no more misfire but like sad gas mileage is horrible any help please

p0021 seems to be the intake valve timing control solenoid valve which could cause the P0300. If the 1000 code was a U1000 then there is a communication problem due to a harness or plug issue. If you received a p1000 then I believe that means the system is still in learning mode after a ECU reset.

Trouble procedures are detailed below:

http://www.nicoclub.com/FSM/FX...c.pdf

are those sensors covered under the regular motor warranty or on my case wen i purchase my 2004 fx35 i also got a warranty will that be covered