No fuel in one cylinder

**tompepper** · 07-18-2019, 06:31 AM

Im not getting fuel im the bottom port cylinder of my 300 promax.
I checked the injectors and they all spray i also checked the fuel harned from end to end for any breaks in the wires, thats good also. When i roll the motor and pull the heads down i can see the 2 cylinders wet but not the bottom.
What can cause the fuel not to reach the cylinder

**patchesII** · 07-18-2019, 10:23 AM

Just one cylinder or both on the bottom? If it’s both you could have that injector driver out in the ecu. If it’s just one I’d try to find another injector harness to try. You say the injectors fired. How did you test them

**tompepper** · 07-18-2019, 01:36 PM

Originally Posted by patchesII

Just one cylinder or both on the bottom? If it’s both you could have that injector driver out in the ecu. If it’s just one I’d try to find another injector harness to try. You say the injectors fired. How did you test them

Its just one of the bottom cylinders.i tested the injector harness and the ecu harness its good. Could a bad reed valve cause fuel not the reach the cylinder?