Have a 93 civic and I replaced the map sensor and now the car will not stay running. Check codes and the cell just stays on no flash what should I do next.

When you turn the ignition switch to ON, does the Check Engine Light come on and go off after 2 seconds? If not, the ECM may be bad. Therefore, perform the K-Test on the ECM:

K-Test: Remove the MAP Sensor connector and turn the ignition switch to ON (not start). Using a multimeter, check for 5 volts going between the MAP Sensor connector's reference wire (+) and ground. As you look at the connector, this is the socket on the right. Really press the black test lead into a cleaned main ECM ground on the thermostat housing. If the voltage is low, it's probably indicating ECM failure. Most failed ECMs will record a fraction of a volt. To me, the K-Test is simple, elegant, and accurate.

I did do the k test that how I found out about the map sensor I will try it the other way to see if it's the ecu I just put a chip in it hope its not bad