Toyota Repair: Toyota Camry loses power, jumper wire, toyota camry

Question
I have a 1994 Toyota Camry 4 cylinder with 187,000 miles. While I was driving I came to a stop and all of the sudden the engine light came on, engine still running but car did not want to go it seem like I was in park pressing on the gas. Can't be transmission car can still go in reverse and low gear. Could this be a tune up problem? Last tune up was 2 1/2 years ago. Any other ideas?  

Answer
The first step would be to find out why the check engine light is on, this can be done by locating the diagnostic connector under the hood then putting a jumper wire between terminals TE1+E1 with the key on, the check engine light will flash the trouble code, it's a two digit code (one blink followed by two would be a code 12) and so on, after the codes are known let me know what they are.