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ENGINE

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4/23/2015

Author:

Marcelo
Sahagun

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Title : MAF Calibration Failure - DTC 132-14
Applies To : 2010 MY Emissions MF 7, 9, 10, DT, N9, and N10

CHANGE LOG
Please refer to the change log text box below for recent changes to this article:
01/16/2026 Changes to the "Applies to" section to add MF 9, 10, and DT
04/21/2020 - Author changed. Replaced SRTs with link to SRT Manual site
12/5/2018- Author updated after feedback review. No changes made
10/5/15 - Added OBFCT
04/23/2015 - 1st Draft





DESCRIPTION
This document will guide the user through Mass Air Flow (MAF) calibration procedures.

SYMPTOM(s)
•
•
•
•

MAF sensor Calibration Failed fault code after MAF Calibration procedure
Low power
Misfiring
Diagnostic Trouble Code(s) & Dashboard Indicator Light(s):

DTC/Light

Description

SPN 132 FMI 14

MAF sensor Calibration Failed

Customer Observations or Concerns:
Generally there is no Customer complaint as this fault is triggered when attempting to perform a MAF calibration

SPECIAL TOOL(s) / SOFTWARE
Tool Description
EST with ServiceMaxx

Tool Number

Comments

Instructions

EST to vehicle
interface

SERVICE PARTS INFORMATION
Kit Description

Part Number

Quantity
Notes
Required

N/A - no parts necessary for procedure

DIAGNOSTIC STEP(s)
Step Action
Does fault code 132-14 come active after MAF calibration attempt?

#1

Yes. Go to Step 2

No. Repair complete

Step Action
#2

Decision

Entry conditions must be met to perform MAF Cal:
- Must run KOER Standard Test first
- Engine Coolant Temperature 1 (above 176 F)
- Engine Oil Temperature (above 176 F)
- Engine Speed (Low Idle Speed)
- Accelerator Pedal Position (0%)
- Brake Switch (Released)
- Parking Brake Switch (Set)
** Only calibrate the MAF if one of the following conditions occurred:
- SPN 132 FMI 13 is set
- ECM calibration update
- Repair MAF sensor or circuit fault
- Repair IMP sensor or circuit fault
- Repair IMT sensor or circuit fault
- Replacement of DPF or DOC
- Repair of the Intake Air System

Decision
Yes. Go to Step 3

- Repair of the CAC system
- Repair or replacement of Turbocharger
- Repair or replacement of Engine Throttle Valve
- Repair or replacement of EGR valve
- Repair base engine (Cylinder head, Pistons, camshaft)
- Engine replacement or rebuild

No. Repeat Step 2

** MAF Calibration Pre-checks:
- No Active fault codes, other than the SPN 132 FMI 13
- MAF and IMP are within KOEO specification
- DPF Status = Regen Not Needed
- No leaks in the Intake Air System
- No leaks in Exhaust system
- No shop exhaust hose attached
- No engine performance issues
- No engine misfire issues
- Transmission in Park or Neutral
- Clutch disengaged
- Engine Fan is off
- PTO is disabled
- Air Conditioning is off
- Accelerator Pedal not depressed
- Close Engine Hood
Have all entry conditions been met?

Step Action
•
•
•
•

Run engine to operating temp.
Turn engine off.
Remove fan belt.
If equipped, remove PTO, Air compressor, Dual A/C compressor and wheel
chair lift belt.
• Run engine and perform Standard Test.
• Run the MAF calibration.
• Once complete you will be prompted to cycle the key.

Decision
Yes. Go to Step 4

NOTE: Make sure you cycle ignition off for at least 30 seconds.
This will prevent ghost over-boost faults from coming active.

#3

• Reinstall belt(s), clear codes.

No. Repair complete

Is fault code 132-14 active?

Step Action
#4

•
•
•
•
•

Run engine to operating temp.
Perform an OBFCT.
Turn engine off.
Remove fan belt.
If equipped, remove PTO, Air compressor, Dual A/C compressor and wheel
chair lift belt.
• Run engine and perform Standard Test.
• Run the MAF calibration.
• Once complete you will be prompted to cycle the key.

Decision
Yes. Review with Lead or Senior Tech.
Do not open a case file unless all
resources within the Dealership
have been exhausted.

NOTE: Make sure you cycle ignition off for at least 30 seconds.
This will prevent ghost over-boost faults from coming active.
• Reinstall belt(s), clear codes.
Is fault code 132-14 active?

REPAIR STEP(s)
N/A

WARRANTY INFORMATION
Warranty Claim Coding:
Group: 12000 - Engines
Noun: 993 - Sensor, Mass Air Flow (Chassis Mounted)
Standard Repair Time(s):
Refer to the SRT Manual for Repair Times

OTHER RESOURCES
MaxxForce 7 Diagnostic Manual
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No. Repair complete