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Discussion Starter · #1 ·
I believe my 190 pump is dying. Couple problems, when my a/c is on my a/f at crusing speeds are normal but when I stop the car at a light without the a/c on my a/f is around 18. Wot it goes from normal to lean as the rpm rise.

Is this the pump or did the emange somehow lose my map? I don't have a laptop or the usb cables and programs so I can't check anymore. What do you guys think.
I would think if it was the emange the car still would run fine while sitting at a light. Pretty much just trying to see if this sounds like a dying pump.

I also have had a knock which has almost gone away after changing the rod bearings. Could this a/f problem be caused by a stuck or bent valve?
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