Just checked out pics of your "pig". Nice gallery. Sorry to here of the house fire. Glad noone was injured and it didn't look like a total loss.Roaming_Pig said:I feel like I have to put my foot through the floor just to get my D2 moving.
Yes, that would be the way to go . . .4.6 with the 4.0 harness and the 4.0 ECU. My problem came from the 4.6 wiring harness that I used (my tech just used it because it was easier for him) It is spliced differently for the evap (the 4.6 engine comes with secondary air that you will take off and plug up) even though the plugs are exactly the same. If you keep the 4.0 harness, it should communicate directly into the 4.0 ECU. The 4.6 ECU will always look for the secondary air stuff (always throwing codes with the SES light on) and that is why you wouldn't use the 4.6 ECU.Disco_Stu said:Hey Pamos-
If you wouldn't mind could you eleborate a little on exactly what you did. I am thinking a 4.6 swap might be coming up for me in the spring, and was starting to put a game plan together. I was under the impression that I could get a 4.6 block and keep the everything else off of the 4.0 then just maybe swap out the ECU.
Why did you need to change the engine harness? And what was the issue you ran into?
Roverhound said:I don't understand. How can swapping the 4.0 to a 4.6 and gaining the what, 40+ horse power and whatever the extra torque not be worth it?
If my 4.0 ever tires out that's exactly what I'll do.
The torque rating on the 4.0 is 250 lb/ft. What is it on the 4.6?
Disco_Stu said:Well now I live pretty damn far from Maine, besides I think ECR is a little rich for my blood.
definitely post up what you find, I always thought that I would have to find a 4.6 ECU but if not that would be great. Also have you checked to see if you are running rich or lean with the 4.0 ECU? I wonder how the fueling will be with the 4.0 computer? Let us know if there are any noticeable drops or increases in gas consumption or power between the two ECU's.