CM2250 stalling at idle

[Chamberpains]

Monitor ECM, and all sensor and pressure voltages with Insite or CT and see if you can catch it in the act. I had TPS wiring that had gone bad (changed color from bright copper to slightly darker copper) in certain areas of the harness. I had to monitor for a week or so while driving to catch it dropping the 5 volt circuit by 1-2 volts intermittently. Which wasn't enough to throw a code but enough to make accelerating interesting at times.