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1991 K5 Blazer with 5.7tbi and sm465, all stock. While looking for an oil leak, I found this 3 pin roundish connector at the rear of the engine above the bell housing. It would be just swell if anyone can identify where this should plug in. It doesn't have much reach beyond right behind and beneath the distributor. And yes, I have both connectors plugged into the distributor. I am having acceleration issues up to 2500rpm when hot and finding this things home resolves that, I will just be ecstatic.
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Looks like oil press sending unit plug ?
That's about all it can be, but would trigger a check engine light and keep the engine from running. Some other landmarks and orientations on what direction those pictures were taken at would help.
 
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