nunnink23

Negative. Just applied 10 pounds to the map and no change in condition even tried 20 pounds. Runs exactly the same. The map sensor is reading correctly, my Rinda tool is verifying that.

Guys, Should manifold vaccum increase when I increase engine RPM? Because it does.

BUP

not psi to the MAp sensor - you need to pull 10 hg inches of vac

nunnink23

BUP, I am on my phone I can't see post #'s. I just tried plugged and unplugged 10 psi of manual vaccum, and she runs like a pig either way

nunnink23

I meant " of vaccum. I promise I am using the correct tool. A hand pump vaccum gauge

BUP

what vac tool are you using I want to confirm the vac tool you are using . You can pull vacuum with this tool 10 hg inches correct ?????

nunnink23

Yes. It's a vaccum test pump that measures in "" of mercury. I promise I am using the right tool

BUP

and do this at the MAP sensor correct and no change at all ? you need to do the other tests that I reported last especially the subtracting the 10 hg vac Volts reading from your normal warmed up engine map volts at idle speed only and fully warmed engine. reread that one and do it correctly. Again if over 1.5 volts you have a good map sensor and connection if 1.5 volts and under bad MAP or its connection in the circuit.

nunnink23

Fully warmed up engine with map connected reads 1.72 volts at 600 rpms. If I plug the port and apply 10 inches of mercury to the map, the voltage is 3.20. You said to subtract the idling voltage from the 10 inches of Mercury manual voltage? If so that's 1.48 volts. What does this mean?

Pliant

And when you did all this how did it run

nunnink23

Terrible. Awful no matter what you do.

And to confuse everyone more, when it's cold if you pour fuel in it, she will start no problem. But once it's warmed up if you spray some carb cleaner in at any rpm it stalls. Which make it sound like its rich. Wtf.