CLASS RACER FORUM - View Single Post

Bench Racer · 01-21-2019, 09:47 PM

Just a little update for those that responded or might be intrested,,, I have had time to do a little more with the project. I picked up a computer from the local pick a part from a 2.3 5 speed. I was wanting to get one from an automatic 2.3 due to Ed mentioning the OEM auto might have a better timing curve to work with my C-4 but went with what I could get my hands on. The ECM swap showed no change, the truck still had periods of stumbling and struggling. A day or so later I robbed a set of injectors from an old 3.0 engine to replace the "rebuilt" injectors I got from E-Bay. With the used injectors the engine sounded smoother at start up, but I had simular issues with the first test drive. after a day or so either the "new" ECM has learned the "new" old used replacement injectors or the fuel pressure issue that I never got to monitor had fixed it's self. I have enough confidence in the truck now to drive it 15 miles from my brothers towing service lol. Due to my ignorance with EFI I was not sure what might have been hapening. Was the likely scenerio an injector sticking open or not opening at all? I assume on a 4 banger flooding or dudding is 25% of the engine and it it pretty well dead either way. After many talks to a mechanic friend of mine about my issues with the truck it became apparent that due to my ignorance I blocked off the heat pipe that came from the heater hose to the intake. I guess I was thinking carburetor. Guess that is why the 2.3 is only getting 13 or so mpg since it got cold. During the summer I guess the heat under the hood kept the manifold and the sensor hot. Getting the manifold heated with coolant is the next project. Hopefully the fuel mileage will get to where it needs to be. If I can get that acomplished maybe tuning will be in the future. I appreciate the your help.

01-21-2019, 09:47 PM	#14
Bench Racer Member Join Date: May 2002 Location: Green Creek (Tryon) North Carolina Posts: 331 Likes: 69 Liked 99 Times in 21 Posts	Re: Ford EEC IV computer Just a little update for those that responded or might be intrested,,, I have had time to do a little more with the project. I picked up a computer from the local pick a part from a 2.3 5 speed. I was wanting to get one from an automatic 2.3 due to Ed mentioning the OEM auto might have a better timing curve to work with my C-4 but went with what I could get my hands on. The ECM swap showed no change, the truck still had periods of stumbling and struggling. A day or so later I robbed a set of injectors from an old 3.0 engine to replace the "rebuilt" injectors I got from E-Bay. With the used injectors the engine sounded smoother at start up, but I had simular issues with the first test drive. after a day or so either the "new" ECM has learned the "new" old used replacement injectors or the fuel pressure issue that I never got to monitor had fixed it's self. I have enough confidence in the truck now to drive it 15 miles from my brothers towing service lol. Due to my ignorance with EFI I was not sure what might have been hapening. Was the likely scenerio an injector sticking open or not opening at all? I assume on a 4 banger flooding or dudding is 25% of the engine and it it pretty well dead either way. After many talks to a mechanic friend of mine about my issues with the truck it became apparent that due to my ignorance I blocked off the heat pipe that came from the heater hose to the intake. I guess I was thinking carburetor. Guess that is why the 2.3 is only getting 13 or so mpg since it got cold. During the summer I guess the heat under the hood kept the manifold and the sensor hot. Getting the manifold heated with coolant is the next project. Hopefully the fuel mileage will get to where it needs to be. If I can get that acomplished maybe tuning will be in the future. I appreciate the your help.