Engine Controls - Engine Stalls During Cold Start
12-027April 25, 2012
Applies To:
See VEHICLES AFFECTED
Engine Stalls During Cold Start
SYMPTOM
If the accelerator pedal is pressed during a cold start, the engine may start, then stall.
PROBABLE CAUSE
The PCM misinterprets the amount of fuel needed to start the engine, which causes it to stall.
VEHICLES AFFECTED
CORRECTIVE ACTION
Update the PGM-FI software.
WARRANTY CLAIM INFORMATION
Operation Number: 125517
Flat Rate Time: 0.2 hour
Failed Part: 37820-R1Y-L55
Defect Code: 03214
Symptom Code: 09303
Skill Level: Repair Technician
SOFTWARE INFORMATION
NOTE:
Unnecessary or incorrect repairs resulting from a failure to update the HDS or MVCI are not covered under warranty.
MVCI Control Module (CM) Update:
Application Version V2.16.04 or later
Database update 22-FEB-2012 or later
HDS Software Version:
3.002.033 or later
Before beginning the repair, make sure that both the HDS and MVCI are updated as listed above.
Do only the update listed in this service bulletin.
Check that the MVCI indicates the applicable program ID listed below (or a later program ID) as the Recommended Update when the update begins.
If the MVCI displays This vehicle does not need an update at this time during the update, the software for this service bulletin is already installed.
For more information about updating the HDS, the MVCI, and vehicle systems, refer to Service Bulletin 01-023, Updating Control Units/Modules.
REPAIR PROCEDURE
Update the PGM-FI software. Refer to Service Bulletin 01-023, Updating Control Units/Modules.
NOTE:
You may be able to use the Engine Stall 2* on-board snapshot to confirm if the accelerator pedal was pressed during engine cranking. If the snapshot captures the beginning of the engine start before the stall, you will see these indicators:
^ The APP sensor voltage rise
^ The engine starts, followed by the engine speed (RPM) slowing
^ The engine stalls
* For more information about Engine Stall 2, refer to the ServiceNews article titled, "Troubleshooting a Stalling Engine? Take Some On-Board Snapshots!"
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