SES Light and DTC P0521 - keywords 07 3.9 calibrate code dtc eop engine low lz8 oil pcm performance pressure program reprogram sensor ses wb
| Subject: | SES Light and DTC P0521 |
| Models: | 2007 Chevrolet Impala / Monte Carlo |
| Equipped with 3.9L LZ8 Engine (VIN Code R) |
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Some owners may comment that the Service Engine Soon (SES) light has illuminated. Upon closer inspection using a Tech 2, DTC P0521 (Engine Oil Pressure (EOP) Sensor Performance) may have been found stored in the PCM.
Recommendation/Instructions:
Using a mechanical oil pressure gauge, verify that the engine has sufficient oil pressure. In addition follow the diagnostic information in SI for DTC P0521. If no problem is found then reprogram the PCM with a new service calibration using the TIS2WEB Service Programming System (SPS) application. As always, make sure your Tech 2® is updated with the latest software version.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
