used gen 2 g35 problems

[adamtj]

hello, i am new to xmods and live in canada.
i bought a used g35 from craigslist today.

Half the signals i send to the car seem not to be followed. by that i mean i have to press the gas trigegr more then once before the car moves or steering takes multiple attempts before a response on the car. i have switched crystals and have tried to use another remote.

there does not appear to be any upgrades to the car.

any suggestions?