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BECKY

I have a 2002 corvette my oil pressure gage stopped working about a month ago now the other day my check gages light came on and my fuel gage reads empty and its not. Can you help me out with this problem?
Thank you

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Oct 29, 2011
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starstarstarstarstar 		Fuel & Oil Gauge Problems
by: Corvette-web-central

(Long story short replace the LH fuel level sensor the P/N is listed below)

From my understanding in reading the GM tech information bulletins it sounds like the problem is being caused by a chemical reaction on the electronics sensor on the fuel gauge. Since not every brand of gasoline has the same additives and also vary by regions of the country; not everyone is having the problem. GM says they have been trying to come up with a coating that is resistant to all of the gasoline additives used, but then the additives change and here they go again. Only certain types of additives seem to cause the problem, but what they are I don't know.


Here is a copy of the actual bulletin.

Document ID# 1673168


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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) #05-06-04-041 - (Jun 14, 2005)
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)
2004-2005 Cadillac XLR

2003 Chevrolet Corvette (Built After December 2002)

2004-2005 Chevrolet Corvette

Built Prior to December 2004

For the 2003 Chevrolet Corvette, this bulletin only applies to vehicles with the FFS fuel system.

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.

If all connections check good, then replace the left fuel tank level sensor with P/N 88967316. Refer to the Left Fuel Level Sensor Replacement procedure in the Engine Controls sub-section of the Service Manual (SI Document ID #1398504 [Corvette] or Document ID #976863 [XLR]).

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:
Part Number Description
88967316 Sensor Kit, Fuel Level (LH)




Oil Pressure
Now the Oil Pressure is also a very common item. Most likely its the sending unit. Its installed behind the intake manifold and requires its removal for access.

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