I found this.
If code E052 is seen accompanied by complaint of engine quit, stumble, telltale's flashing or other stored codes, check for intermittent loss of power or ground to the PCM on CKT 480 and 450 respectively. Manipulate wiring and connections with engine running. Remove and replace the PCM A/B, C/D, and E/F connectors and ensure that they are latched.
The G301 ground is located under the right Kick panel. There are two gounrd bolts, and the G301 is the top bolt. Check that and the associated wiring the the ECM.
Monday, August 7th, 2006 AT 5:45 PM