95 Eclipse GST No Fuel

[BryBigs]

Hey, I have a 95 Eclipse that is having a no start problem. From what I can tell there is gasoline getting into the fuel rail but not to the spark plugs. This usually means the fuel injectors are bad, but I thought it would be strange that all 4 would go bad at the same time. The car is throwing some codes out, I don't remember the exact codes at the moment, but one code has to do with the Manifold Absolute Pressure sensor and the other is the Mass Air Flow sensor. I know the previous owner was running the car without a MAF. Could either of these sensors be stopping the fuel injectors from working? Also as a side note, I bought the car with a blown 4g63 engine in it and I swapped it to a 4g64, the car started up (with the blown engine) when I bought it. Could the ECU not be recognizing this new engine? Any help is appreciated, thanks in advance.

 

[4everboosted]

You need to get the exact codes..
How do you know your getting fuel to the fuel rail and how do you know it isn't reaching the cylinders? Do you have spark?
The 4g63 does not use a map sensor, the 420a does, and I'm not sure about the 4g64 but you either have one or the other.

 

[rebuilt_gsx]

Could be the injector connectors, I would try to clean out your fuel system to make sure nothing is clogged. And what was he running if he didn't have a MAF sensor?band double check you are getting enough fuel to the fuel rail, it could be the fuel filter or a dying pump