Okay, another update.

I concluded that I was restricting the air through the solenoid circuit a little too much. When I started the car this morning, the idle didn't get much over about 1000 RPM on a cold start. It was smoother (less air = richer mixture), but the low cold idle speed bothered me. So I found some washers in my junk (miscellaneous hardware) drawer that were the same outside diameter as the hose inside diameter. I changed out the brass fittings having the hole diameter of about 1/8 inch with a washer having a hole size of about 3/16 inch. Tomorrow's cold start will show the effect.

I'm not sure it runs better, but it certainly doesn't run worse.

Don, y'all
.


Paw-paw Don, y'all
.

Favorite quote: "One need never apologize for exercising the Golden Rule."