P CODES (POWERTRAIN) P1400 - P1499 P1400

Car Runs Like It's Only Firing 2 Cylinders, Replaced Diff Pressure Sensor, Still Running Poorly. Any Suggestions?

I Have A P1400 Trouble Code And Would Like To Know What It Means, Thank You.

Six Cylinder Vulcan Engine. Getting P1400 Code, Also Engine Will Not Idle, Shuts Off Immediately After Crank. I Can Bypass The Maf Sensor...