I have a 1986 Delta 88 that I bought from an elderly family and boy did they take care of it. Garage kept all original paint and 10/10 interior. One problem is that when warmed up will idle bad and at one point it stalled on me and wouldn't start back up. It was like I turned the key off just died. No sputtering just died. I pushed it through the intersection and waited about 5 minutes and it fired back up like there was no problems. The other day It stalled at a freeway entrance but fired right back up. Oil pressure reads 60 when idling cold and 80 when driving cold and once it'* warm it drives at 60 and idles at 40 but when idling the needle is all over the place. Just flicking all over the place. What could be causing this? It has the pre series 3.8 v6. 146k miles

1986 Oldsmobile Delta 88 runs&drives cold a/c (for images)

30 year old vehicle......ever do a compression test on the cylinders? How are the wires? Last COMPLETE tuneup? With car running, take the handle end of a screwdriver, and tap the MAF sensor......if it stalls, dies, or acts erratic, it'* the sensor...