here is the info for oil contamination of maf sensor pics are in order
WDS/IDS - Powertrain Control Module (PCM) - Reprogramming
• NOTE: Use WDS CD B45 / IDS 46 DVD or a later version.
1. Connect the WDS/IDS portable diagnostic unit to the vehicle and establish communication (VID the vehicle).
- Confirm the vehicle details are correct.
2. Check for any stored Diagnostic trouble codes (DTCs) related to this concern.
- If DTCs P1101, P1103 or P2279 are stored in the PCM, go to next step.
- If no or other DTCs are stored, check the correct PCM calibration (see table below) and check for other reasons relating to the customer concern.
3. Reprogram the PCM using WDS/IDS.
- Select the correct calbration from the following table.
Calibration overview for 1.6L Duratorq-TDCI (DV) Diesel
TransaxleEmission levelOld calibrationNew calibration for PCM Reprogramming5-Speed Manual TransaxleStage 33M51-12A650-MH*3M51-12A650-MJ5-Speed Manual TransaxleStage 34M51-12A650-NF*4M51-12A650-NGAutomatic Transaxle (CFT23)Stage 34M51-12A650-PD*4M51-12A650-PE5-Speed Manual TransaxleStage 44M51-12A650-KG *4M51-12A650-KHAutomatic Transaxle (CFT23)Stage 35M51-12A650-TB*5M51-12A650-TC/TD5-Speed Manual TransaxleStage 45M51-12A650-UA 5M51-12A650-UB5-Speed Manual TransaxleStage 35M51-12A650-LB*5M51-12A650-LC Automatic Transaxle (CFT23)Stage 46M51-12A650-CC6M51-12A650-CGAutomatic Transaxle (CFT23)Stage 37M51-12A650-TB*7M51-12A650-TD5-Speed Manual TransaxleStage 47M51-12A650-UA7M51-12A650-UC
*and older version
4. Disconnect WDS/IDS from the vehicle.
Check the oil level of the engine
1. NOTE: If the engine has been overfilled this can lead to oil overflow into the air cleaner outlet hose.
Check the oil level and adjust as required.
SEE PIC 1
1. Remove the engine upper cover.
2. Remove the air cleaner outlet hose.
SEE PIC 2
3. Check the design of the air cleaner outlet hose and compare with the illustration that shows physical changes between the <MF> and <MG> levels.
- Detach the air cleaner outlet hose clamps.
- Detach the positive crankcase ventilation (PCV) hose quick release coupling.
1. Old level with Part Number: 3M51-9A673-MF
2. New level with Part Number: 3M51-9A673-MG
• If the latest air cleaner outlet hose (3M51-9A673-MG or later) is installed, do
NOT install a new one unless you can clearly observe a leak from the joints from the positive crankcase ventilation (PCV) hose or the air cleaner outlet hoses. Go to
<Check the air cleaner housing and the air cleaner outlet hose>.
• If an older level is installed, install a new air cleaner outlet hose (see Parts Required).
• Go to next step.
SEE PIC 3
1. NOTE: Oil overflow from the engine will be increased if there is a large negative pressure in the air cleaner outlet hose due to a blockage anywhere from the air cleaner housing to the turbocharger inlet.
Detach the air cleaner quick release from the air cleaner and remove the air cleaner.
- Check for any blockages in the air filter housing or the air cleaner outlet hose. Remove if reqiured.
- Make sure that the inside of the air cleaner outlet hose and the PCV hose are clean and free from any oil residue. Clean the air filter housing and the air cleaner outlet hose with brake cleaner.
- Fully dry the components with compressed air.
SEE PIC 4
1. Remove the MAF sensor.
SEE PIC 5
2.
CAUTION: Never use any kind of mechanical cleaning equipment like tissues, brushes etc. This leads to damage of the MAF sensor element.
• NOTE: Use brake cleaner only.
Thoroughly clean the MAF sensor with brake cleaner.
- 2.
CAUTION: Compressed air system must have oil and water separator. The air needs to be directed towards the front of the sensor - the mesh side. Hold a distance of at least 40 cm to the MAF sensor. Closer use may lead to damage of the sensor element.
- Fully dry the MAF sensor with compressed air.
3. To install, reverse the removal procedure.
