The Ford Barn - View Single Post - Let's start a junkyard fuel injection discussion

Kilohertz · 03-07-2021, 11:39 AM

Okay, well that's great news, I'll forget the knock sensor and carry on.

I continued cleaning up the harness yesterday and brought a 4.3L throttle body unit home to play with until I find the 2.8L one. I have all the sensors and such and am ready to start assembling the system, I just need to find that elusive Merc manifold. I know of 2 but am waiting for a road trip to get one.

Ken, your suggestion of having each injector spray into only one side of the manifold is definitely my plan and I may go even one further. I found that the GM ECM has 2 different injector drive signals but they always fire at the same time in original configuration. As I work my way thru understanding the EPROM code I am going to try to find a way to fire each injector separately, I'm not sure how important this is, but if I can batch fire 4 cylinders at a time instead of 8....just thinking out loud. I know the wet manifold isn't the best design.

Cheers

03-07-2021, 11:39 AM	#59
Kilohertz Senior Member Join Date: Jan 2021 Location: Slightly left of Vernon, BC Posts: 155	Re: Let's start a junkyard fuel injection discussion Okay, well that's great news, I'll forget the knock sensor and carry on. I continued cleaning up the harness yesterday and brought a 4.3L throttle body unit home to play with until I find the 2.8L one. I have all the sensors and such and am ready to start assembling the system, I just need to find that elusive Merc manifold. I know of 2 but am waiting for a road trip to get one. Ken, your suggestion of having each injector spray into only one side of the manifold is definitely my plan and I may go even one further. I found that the GM ECM has 2 different injector drive signals but they always fire at the same time in original configuration. As I work my way thru understanding the EPROM code I am going to try to find a way to fire each injector separately, I'm not sure how important this is, but if I can batch fire 4 cylinders at a time instead of 8....just thinking out loud. I know the wet manifold isn't the best design. Cheers __________________ 1949 Ford F-47 with a '51 8BA Flatty, GM TBI fuel injection system, and a grey shop cat, Spot.