At first when the engine was cold, it started right up and ran great. After it was warmed up, it begam to start hard. Now it starts super hard cold. It sits and misses and then it catches and runs smooth at idle. Soon as you touch the gas pedal, it shuts right off and won't start for hours.

Will not start after it cuts off, it but after it cools it will start again

I've replace distributor, ignition module and coil I've replace fuel filter, map sensor, fuel pump relay fuse, and I'm still having the same problem

It happened after I installed an aftermarket radio and I didn't have enough to buy the harness adapter so I straight wired the radio and the two wires that control the dimmer switch and lights in the dash touched the ground wire and my speedometer went from zero to three then back to zero. Now when I drive it just shows zero mph and its not recording mileage either. Also my light in the dash work when I turn on my headlights but the dimmer switch doesn't dim or brighten the lights in the dash the only thing it does is turn on the light in the top if the car if the switch is pushed all the way up. Please give some advice because I hate driving and don't know how fast I'm going.

It was rebuilt 25K ago. It does not slip or grind.

I already replace temp.sensor and fan relays. They work fine as long as the heat or air is on.

you can put it in drive and go but wen it get to second gear going into 3rd it wont go into it unless you press on d gas hard

But if I wait an hour until it cool off it will start an I change ever part that have something to do wit it so wat can it be

I had a tune up and oil change. Cleaned the throttle body. Had the injectors cleaned. New air filter. There's no vacuum leaks. Going to change the fuel filter next but dont know if that will work either. Engine light comes on but dont have any codes.

Car starts great when cold and runs good! When I stop for 15 to 30 min. the car will not start, tries to start but won't stay running, spits and sputters then may or may not start and runs rough when it finally does start. No codes. Fuel pressure is fine and we took catalytic converter off but nothing solved the problem. What next??