i need help or some kinda site that bring me step by step to how to install a sr20det properally into a 90 240 sx thanks
well first thing…what sr20det? does ur car have abs?
once u answer that then i can help further
also www.heavythrottle.com has a pretty good explenation site
i have some pics for the wireing that i might be able to let u use but u have to like sucking penis 
HAHA