Excursion 4WD V8-6.0L DSL Turbo VIN P (2004)
d. Compare the voltage to Figures 1 and 2. Recorded value is higher than limits, possible causes are:
(1) MAF sensor.
(2) Air Leak in the charge air cooler (CAC) system.
(3) Dirty Air Filter.
(4) Aftermarket Air Intake System and/or Air Filter.
e. Verify the MAP/BARO correlation. Are they within 1.5 psi (10.3 kPa) of each other? If not, follow PC/ED PPT test E2 for the appropriate
diagnostic and repair.
f.
Apply 25 psi (172 kPa) of regulated air pressure to the MAP sensor through the hose. Using IDS datalogger with the MAP and MGP PIDS,
verify the MAP sensor is reading the proper pressure change and the MGP is being calculated properly by the PCM.
(1) If not, follow PC/ED PPT test E2 for the appropriate diagnostic and repair.
(2) If ok, go to step 11.
10. Is the vehicle setting a P006A code along with the P0401 or P0402?
