You have 3 variables: air, gas, and spark. Something is wrong with one of those three. Narrow it down in spirials. You start with gas, then move to spark, then see if air is involved, then come back to gas, start over again. You make a list for everything it could be in each of those areas, prioritize them, then pick the highest from gas, then from spark, etc. That is how you solve the problem.



Next thing I would check is spark. Is the rear rotor getting the right spark?



Tony

Take the rear 2 injectors and move them to the front and move the front 2 to the rear and start the car.... See if the front rotor starts to run hot, if so it's a bad injector...