1993 Toyota Corolla Question: my engine check light is turned on and my car limits/ jerks, i changed all my

If the Check Engine Light is on you need to retrieve the trouble code stored in the computer of your car which is easy on the Corolla.For who to retrieve codes check http://www.troublecodes.net/Toyota/
There is a company that independent auto repair shops get their information from, this same information is available inexpensively for people that work on their own cars.. The information is year make and model specific, covering repair procedures, torque specifications, fluid capacities and specifications, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate http://bit.ly/AllData_Repair_Manuals_Online