I have a 2.9 v6 giving me lots of trouble not starting. I've tested for spark fuel pressure and tested the coil everything looks good. Fuel is getting to the engine spark plugs are all wet. Runs on ether but runs rough sometimes will start and cold idle at about 1500 but die after 2 or 3 seconds. Thought timing was off because it was backfiring out the intake but adjusted timing and still no luck. Also cap rotor plugs and wires are all new.