GM-GMC: gmc truck help?, gmc truck, accesory

Question
I have an 88 gmc 350 it was idling at the car wash I went to leave and it died and will not start again. I have already replaced the tps and checked all the plugs and it is getting gas, what is wrong?

Answer
well if you havent already try checking for spark to the park plugs. to do this just remove a plug reconnect it to the plug wire and contact the metal side to a good ground point clear of any electronics or sensors.example: valve cover or an accesory bracket. once you do so crank the engine you should get i nice blue and orange spark. if you dont have spark then you have a bad coil. if you do i would suggest taking it to a shop to have further tests done to check sensor perameters.