Now maybe this link has been posted before but ive never seen it so im assuming theres alot of people who also have not seen it (EXCUSE ME, PEOPLE WHO HAVE BEEN ON HERE FOR YEARS LOL) but i think this would save alot of time and kinda force people to actually check their cars themselves instead of tryin to type something and immediately get an answer to their problem.
http://www.240edge.com/manuals/ <<<<everything you will EVER need...step by step troubleshooting procudures.
Example: (for my 90 coupe with a ka24e)
http://www.240edge.com/manuals/89-90_240sx/trouble_.pdf .........it even does a little float chart thingy in which you find the problem youre having (keep scrolling down, because it is categorized) and it gives you step by step solutions...for example..."car wont start" it tells you possible causes..dead battery, bad starters, and so on....again this is for people who havent noticed this yet, please dont comment with the noob crap. Thanks and happy drifting!