[dartfrog26]

I have a 92 honda civic LX it starts first thing when it is cold and once the engine warms up it starts to perform bad. When I start after stopping at a light it hesitates in going when I have my foot sometimes all the way to the floor. When I go from city driving to interstate driving it has a hard time shifting as I speed up. After driving it around the city and stopping and starting it a few times, it does not want to start up again. It does not turn over. What could this be?

[TxGreaseMonkey]

. Check for codes, if any.

. Replace fuel filter.

https://www.askmehelpdesk.com/cars-t...tml#post224689

. Test/replace the Ignition Control Module and coil. AutoZone can do this for free.

https://www.askmehelpdesk.com/cars-t...tml#post265896

. Test/replace main relay, if the problem persists.

This would be a good time to also replace the spark plugs (NGK only), rotor, and distributor cap.

[dartfrog26]

What about the map sensor?

[TxGreaseMonkey]

Yes, you can check out the vacuum hoses and ensure there's no blockage from the throttle body to the MAP Sensor. Fortunately, these are a very reliable sensors and not prone to problems. Unfortunately, for those whose MAP Sensor fails, they are very expensive--in some cases, prohibitively.

If you experience the situation where the Check Engine Light does not go out after two seconds, when you turn the ignition key to ON, perform the K-Test on the ECM:

K-Test: Remove the MAP Sensor connector and turn the ignition switch to ON (Position II). 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.