will not stay running

What is your question?

Just traded for a 97 millenia, ran good except for a miss that would disappear when accellerating. Already replaced the crank sensor, distributor cap, rotary button, wires and plugs and the rack and pinion. The other day, car quit while in drive thru, car quit firing. Keep getting a code of p1345 (crank shaft position sensor or cam sensor). Like earlier, already replaced the crank shaft sensor and do not know where to locate the cam sensor