C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

I got a code that's not on the code list???

Thread Tools
 
Search this Thread
 
Old Aug 13, 2005 | 11:29 PM
  #1  
Morzoff's Avatar
Morzoff
Thread Starter
Safety Car
20 Year Member
 
Joined: Dec 2003
Posts: 3,626
Likes: 1
From: Fremont California
Default I got a code that's not on the code list???

Need Help,
I was driving back from A&A today and got a code that is not on any code list. The code is below.



"PCM" P2068 H,


I have looked all over for this code and I can not find it anywhere, does anyone know what this is? I have a 2004 Z.

Thank You in advance

Mike
Reply
Old Aug 13, 2005 | 11:59 PM
  #2  
WilliamCall's Avatar
WilliamCall
Racer
15 Year Member
 
Joined: Oct 2004
Posts: 432
Likes: 49
From: Southern Maryland
Default

The code is as follows:

P2068 - Fuel Level Sensor 2 Circuit High Voltage


Not sure how to trouble shoot. I would clear the code and monitor the fuel gauge. Maybe someone else will chime in.
Reply
Old Aug 14, 2005 | 12:04 AM
  #3  
Morzoff's Avatar
Morzoff
Thread Starter
Safety Car
20 Year Member
 
Joined: Dec 2003
Posts: 3,626
Likes: 1
From: Fremont California
Default

Originally Posted by WilliamCall
The code is as follows:

P2068 - Fuel Level Sensor 2 Circuit High Voltage


Not sure how to trouble shoot. I would clear the code and monitor the fuel gauge. Maybe someone else will chime in.

Thank you, where did you find it, do you have a copy of the code list


Mike
Reply
Old Aug 14, 2005 | 12:34 AM
  #4  
Mr. Lucky's Avatar
Mr. Lucky
Melting Slicks
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jun 2004
Posts: 3,439
Likes: 6
From: Newark, DE
St. Jude Donor '06
Default

I found two slightly different definitions for that code, but strangely, no troubleshooting info.
  1. P2068 - Fuel Level Sensor 2 Circuit High Voltage (under Powertrain Codes)
  2. P2068 - Secondary fuel level sender signal is higher than normal (pg.7)
It doesn't sound too serious. Is your fuel guage working normally?
Reply
Old Aug 14, 2005 | 09:44 AM
  #5  
Morzoff's Avatar
Morzoff
Thread Starter
Safety Car
20 Year Member
 
Joined: Dec 2003
Posts: 3,626
Likes: 1
From: Fremont California
Default

BW1,
Thank you, are all those the same for our vette, it says CADILLAC
I went on a long road trip and the fuel gauge was acting up,
It showed "NO" fuel after a fill-up, The only time the gauge has ever given me any problems is on both trips to A&A about 700 miles round trip. I think I need to drop the tank and check the connectors on the sending unit

http://forums.corvetteforum.com/show...236&forum_id=1


Mike

Last edited by Morzoff; Aug 14, 2005 at 09:50 AM.
Reply
Old Aug 14, 2005 | 10:33 AM
  #6  
Mr. Lucky's Avatar
Mr. Lucky
Melting Slicks
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jun 2004
Posts: 3,439
Likes: 6
From: Newark, DE
St. Jude Donor '06
Default

Originally Posted by Morzoff
BW1,
Thank you, are all those the same for our vette, it says CADILLAC
You're welcome Mike, and yes, they are the same. OBD-II is OBD-II - the code would have same meaning in a Mopar.

BTW, I noticed the second poster in that thread link you provided had the same problem on the way to Andy's (you had it on the way back).

Reply
Old Aug 14, 2005 | 10:54 AM
  #7  
Morzoff's Avatar
Morzoff
Thread Starter
Safety Car
20 Year Member
 
Joined: Dec 2003
Posts: 3,626
Likes: 1
From: Fremont California
Default

Originally Posted by BW1
You're welcome Mike, and yes, they are the same. OBD-II is OBD-II - the code would have same meaning in a Mopar.

BTW, I noticed the second poster in that thread link you provided had the same problem on the way to Andy's (you had it on the way back).

BW1
It's weird , I went to the A&A GTG a couple of months ago and had a fuel gauge problem 1st time ever, and then yesterday going to A&A to pick up a buddies car I have the same issues again, only going to A&A

P.S. Maybe my car doesn't like southern California


Mike
Reply
Old Aug 15, 2005 | 05:24 PM
  #8  
flyguy3's Avatar
flyguy3
7th Gear
 
Joined: Apr 2005
Posts: 7
Likes: 0
Default

Watch your gas closely.....stations like shell & bp have additives that make the fuel gauge die. I've been lucky so far, but have had other Corvettes and other GM model owners complain of the same problem. The "H" on the end of the code stands for history.....problem occurred & was solved by pcm...FYI.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-1

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-2

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-3

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-4

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-5

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-6

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-7

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-8

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-9

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
Old Aug 16, 2005 | 01:09 AM
  #9  
Rob 99's Avatar
Rob 99
I'm "Apache" a psycho dog
Supporting Lifetime
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2001
Posts: 3,085
Likes: 31
From: N.J.
Default

Alway's shut off your car before filling up, i don't know why but the gauge always starts at full when the car is off during fill up, with it running it seems to take forever to read full.
Reply
Old Aug 16, 2005 | 09:50 AM
  #10  
Morzoff's Avatar
Morzoff
Thread Starter
Safety Car
20 Year Member
 
Joined: Dec 2003
Posts: 3,626
Likes: 1
From: Fremont California
Default

Originally Posted by flyguy3
Watch your gas closely.....stations like shell & bp have additives that make the fuel gauge die. I've been lucky so far, but have had other Corvettes and other GM model owners complain of the same problem. The "H" on the end of the code stands for history.....problem occurred & was solved by pcm...FYI.


I did use shell that day!

I try to use Chevron, but on that road trip I used everybodies super unleaded

Thanks to all for the input
Reply
Old Aug 16, 2005 | 01:24 PM
  #11  
javamon's Avatar
javamon
Instructor
 
Joined: Jun 2005
Posts: 110
Likes: 0
From: panhandle Florida
Default

Originally Posted by flyguy3
Watch your gas closely.....stations like shell & bp have additives that make the fuel gauge die. I've been lucky so far, but have had other Corvettes and other GM model owners complain of the same problem. The "H" on the end of the code stands for history.....problem occurred & was solved by pcm...FYI.
What's the additive in Shell's gas that makes the fuel gage die?
Reply
Old Aug 16, 2005 | 01:48 PM
  #12  
Rob 99's Avatar
Rob 99
I'm "Apache" a psycho dog
Supporting Lifetime
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2001
Posts: 3,085
Likes: 31
From: N.J.
Default

Originally Posted by javamon
What's the additive in Shell's gas that makes the fuel gage die?
I think it's the way Shell refines(less sulpher) that makes it less corrosive to the in tank sending unit.
So it's whats not in Shell rather than what is.
Thers a couple topics and opinions about fuel brands try searching and you will be overwhelmed
Reply
Old Aug 16, 2005 | 03:26 PM
  #13  
BlueDragon's Avatar
BlueDragon
Drifting
10 Year Member
 
Joined: Jul 2002
Posts: 1,484
Likes: 0
From: Morgan Hill Ca.
Default

It was rumored that the California gas additive MTBE would attack plastic auto parts, don't know if that is what you are talking about.

Good ole Republik of California! Get clean air with MTBE insist that it be a standard and then after a few years find out that when it's by- products get into the water supply it is a deadly poison. And then they contracted with a firm and pay big bucks to make them the sole source of the MTBE.
Reply

Get notified of new replies

To I got a code that's not on the code list???





All times are GMT -4. The time now is 07:39 PM.

story-0
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-1
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-2
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-3
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-4
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-5
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-6
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-7
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-8
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-9
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE