Here is my problem i THINK i have an idea but not really sure never had a problem like this... well when my service engine soon light is on my car runs like a champ when it goes off it wont even start and well atm just started yesterday i start my car if i hold down the gas the light goes on off repeatedly and car wants to die run die run well in other words running like crap or not at all so its parked im thinking it can be the EGR Valve but im not sure i dont know a great deal about cars but i know the basics i just got license back put new bat alt thermostat tune up oil change fuel pump relay. so really i have no clue what it can be any help would be very much appr.

 

pull ALDL codes....