so my car is a 95z28 m6 its heavily modified, i got the car from a guy that owed me money so i dont know a lot of the exact specs but this is what i know, its got a full exhaust edelbrock headers, world heads, bbk dual throttle body, the intake is not stock but i cant say for sure that its the lt4, its got a comp cam of some sort and comp roller rockers,the car is lowered and its got a paxton supercharger on it. the fuel lines are braided ss and its got a vortech fuel pressure regulator. i was driving it and it stopped responding to the throttle and then it wanted to shut off , i could keep it running if i stayed on the gas but i wouldnt idle on its own. it did restart once and ran ok for a half mile then same thing again and it now will not start . it does turn over good. the car has gas in it and the fuel pump does run the car has run really rich ever since i have owned it. i know this sounds like a fuel problem and it may be but im leaning towards something else being the problem. any input is appreciated and thanks in advance.

 

have u scanned for trouble codes yet? check fuel pressure and see if your getting spark at the plugs. first thing to come to mind is the opti or ignition module.

 

the service engine light is on but i couldnt find my code reader but i took the car to my uncles garage but havent heard anything back yet as to what the codes are , i did pull one plug wire and it did have spark. you can hear the pump run but when it let me sit it was eleven at night so i had to have it towed and i havent really been able to look at it myself as i had them take it straight to the garage. but they dont typically get cars as modified as mine to work on and they said they might not know what all to look for if there is something with the mods causing the problems.

 

i would say keep an eye on the fuel pressure regulator since your sayin you have spark