Corvette V8-6.0L VIN U (2005)
Fuel Gauge Sender: All Technical Service Bulletins
Instruments - Erratic Fuel gauge Readings/DTC P0463 Set
Bulletin No.: 05-06-04-041A
Date: November 09, 2005
TECHNICAL
Subject:
Erratic Fuel Gauge Readings, Fuel Gauge Reads Empty When There Is Fuel In Tank, DTC P0463 Set, Service Fuel System Message Displayed (Replace
Left Fuel Tank Level Sensor)
Models:
2004-2005 Cadillac XLR
2003 Chevrolet Corvette (Built After December 2002)
2004-2005 Chevrolet Corvette
Built Prior to December 2004
Attention:
For the 2003 Chevrolet Corvette, this bulletin only applies to vehicles with the FFS fuel system.
Supercede:
This bulletin is being revised to correct an add condition within the Warranty Information. Please discard Corporate Bulletin Number 05-06-04-041
(Section 06 - Engine).
Condition
Some customers may comment that the fuel gauge is erratic or reads empty when there is fuel in the tank. Also, the driver information center may display
"Service Fuel System."
Upon investigation, the technician may find DTC P0463 set.
Cause
This condition may be due to the following causes:
^
The sender card has insufficient ink and looses electrical contact when the tank is over filled.
^
Loose or poor connections at the PCM.
Correction
Check the connections at the PCM/ECM using the proper pin drag test. Use care to select the proper pin for testing. Refer to PCM/ECM Connector End
Views in SI in order to identify the correct pin. If all connections check good, then replace the left fuel tank level sensor with P/N 88967316.
Right fuel tank senders are rarely faulty and should only be replaced if diagnostic information specifically indicates replacement of the right fuel tank
sender or a DTC P2068 is present.
Parts Information
Warranty Information
