Perceived Poor Fuel Economy in City Type Driving (Reprogram Powertrain Control Module (PCM) with New Calibration)
| Subject: | Perceived Poor Fuel Economy in City Type Driving (Reprogram Powertrain Control Module (PCM) with New Calibration) |
| Models: | 2005 Chevrolet Equinox |
| with 3.4L V6 Engine (VIN F -- RPO LNJ) |
Condition
Some customers may comment on poor fuel economy in city type driving.
Cause
A PCM odometer calculation error that occurs at speeds associated with city type driving is causing fewer miles (kilometers) to be displayed than that actually traveled. As a result, the vehicle really is getting more kilometers (miles) per gallon or tankful of fuel.
Correction
Important: The new calibration will only address customer comments on poor fuel economy at city type driving speeds. It will NOT address or correct any comments on poor fuel economy at highway speeds .
Reprogram the PCM with the latest calibrations if the above concern is encountered. An updated PCM calibration is now available to address this concern. This calibration, or any that follow, is designed to address this concern. Refer to Service Programming System (SPS) using the appropriate Service Information (SI) procedures. The new PCM calibrations will be available to dealerships as part of TIS2000 incremental satellite update version 9.0, which was broadcast to dealers on 09/06/2005. For the dealerships that use CD's, they were mailed on 09/14/2005. As always, make sure your TECH 2® is updated with the latest software version.
Calibration Part Numbers | |
|---|---|
12604903 |
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
J6354 | Module, Powertrain Control - Engine Reprogramming | Use Published Labor Time |
