hi. i just bought a 1990 celica 2.2l twin cam. it doesnt have a manual, can the be downloaded for free anywhere? i will be in need of one. also, the spark plug leads on culinders 1 and 3 are coming off. i am hopeful that it is just a matter of changing the leads but want to check the engine pressure. how do i do this? please feel free to email me with some help!