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Hi my name is XXXXX XXXXX someone start the engine. as soon as it starts tap the idle air control motor with a screw driver handle and see if the engine keeps running
I tryed tapping on the idle air control motor and the engine still dies. I allso tryed to feather gas paddle to keep the engine running and tapped on IAC motor and still had no luck but got a code for o2 sensor 1+2 stuck lean. This code came up as I was feathering the gas paddle to keep the engine running . It was running rough and could not hold a idle.
Tryed spraying carb cleaner at all fittings and manifold to look for a leak but did not see any differance in the idle. Still had to feather the gas paddle to keep truck running and the idle did not go up or down as I was spraying the carb cleaner.
This was me trying to keep the car at idle MAF LB/m 2.32
The MAF was from Ford purchased at a ford dealer .It was a remanufactured unit witch I still did not return the core. I have had problems with remanufactured uints from auto parts stores before that is why I went to Ford and thay told me this was all that was avalable for my car and I had to order it and wait for it to come in.
can I get the vin #
Vin # XXXXX
Part # XXXXX Motorcraft box for MAF sensor AFLS-176RM
2003 Ford Expedition EB 5.4L
from everything you are giving me with the pids. there most likely a vacuum leak you are not finding. 90% of the cars I work on with these codes are vacuum leaks. recheck the pcv tubes especially where they connect to the intake. here is a ford technical service bulletin about the vacuum leaks. this is such a common problem ford put out a bulletin.
This article is intended to aid in diagnosing DTC's P0171, P0174, P1130, P1131, P1150, P1151, P2195, or P2197 (system lean or lack of HEGO switches) when a vacuum leak is present. HEGO sensors, MAF sensors, and PCM replacements are not an effective repair when a vacuum leak is causing the above DTC's.
Perform the following inspections/repairs when the above codes are found in memory. Procedure provides instructions on how to make comparisons of the total fuel corrections (using scan tool or equivalent) at idle and high RPM's to help determine if a vacuum leak is the root cause of the DTC's.