Protege LX L4-1.6L DOHC (2000)
Air Flow Meter/Sensor: All Technical Service Bulletins
Engine Controls - MIL ON/Driveability Concerns
Bulletin No: 01-018/01
Last Issued: 11/1/2001
Subject:
MIL ILLUMINATION WITH P0171, P1170, LACK OF POWER, HESITATION
APPLICABLE MODEL(S)/VINs
All 1999-2000 Protege 1.6L with VINs lower than JM1 BJ222* *0 300996.
DESCRIPTION
Some vehicles may exhibit MIL illumination with any of the following symptoms: DTC P0171, DTC P1170, Lack of power, Hesitation, Unstable idle.
These conditions may be caused by contamination of the mass air flow sensor wires.
Customers having this concern should have their vehicle repaired using the following procedure.
REPAIR PROCEDURE
1.
Verify customer concern.
2.
Record DTC and Freeze Frame data.
3.
Inspect intake system for vacuum leaks.
4.
Identify production date on MAF sensor.
-
If MAF sensor has a production date before 07B27 (July 27, 2000), proceed to STEP 5.
-
If MAF sensor has a production date on or after 07B27 (July 27, 2000), this Service Bulletin does not apply. Refer to Workshop Manual for
further diagnostic procedures.
5.
Clean surface surrounding MAF sensor.
6.
Replace MAF sensor.
Note:
Make sure 0-ring is correctly positioned on replacement MAF sensor before installation.
Caution:
^
Do not allow water to enter MAF sensor connector.
