Hello,
I just aquired this 90 lumina from my aunt. The car will start when its cold and idles but you can hear a slight miss. then as it starts to warm up and the idle speed comes down it starts to miss worse and worse, finally stalling like its flooding out. If you try and start it just cranks, if you feather the gas it will try and start but acts like its flooded. If you let it set for a bit it will start again but starts the cycle over again... if you get it started it will run as long as you constatly feathering the throttle and reving it like crazy. It does not set off a engine light. I also hooked up a timing light to the front 3 sparkplug wires and they are geting spark while its missing, i havent done the rear yet, but i dont have a reason to think they are not geting spark.
Things that have allready been replaced by prev. mechanic:
Fuel Pump/filter/strainer
Fuel rail
(1) fuel injector
Spark plugs/wires
upper and lower intake gaskets
coil packs
Please advice on what the next steps to diagnosing this issues.
Thanks!