My 89 2.6L is carbureted, When I put a Weber on it and MSD ignition, what would the ECU control? Could it be deleted?
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My 89 2.6L is carbureted, When I put a Weber on it and MSD ignition, what would the ECU control? Could it be deleted?
With a Weber, the ECU serves no purpose. You can remove it, unplug it or simply ignore it.
you can easily remove the ECU and all of the associated wiring, I did the same on my truck last fall. It cleaned up the look the the engine bay tremendously. I also removed all of the extra vacuum tubing that was unneeded with the weber carb.
Now that i think about it, doesn't the ECU run the ignition?
Not sure about FI engines, but on a carb'd engine the ignition has its own ICM inside the dizzy and wired up directly to the coil, no ECU involved.
On the carbed engines the ECM is programmed to maximized fuel efficiency and minimize emissions. The ignition provides inputs to the ECM, but ECM outputs only go to the carb and EGR valve, neither of which matter if you install a Weber.
Is the vacuum actuated valve right under the carb the EGR? I am assuming it is but I don't know. When I pulled it off it was caked inside with carbon and oil dripped out of it.
From your description, that sounds like the EGR valve. The mounting surface faces toward the radiator. It has two bolts one of which may serve as a ground point. The valve often gets filled with carbon. Without any vacuum connection it’s inoperable. You can just leave it or for a cleaner look fashion a bolt on cover.Quote:
Originally Posted by Fingers
Cooler running engine https://youtu.be/PRac7uHWUFQ