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:

Code P0751 ??

Thread Tools
 
Search this Thread
 
Old Jan 9, 2009 | 08:25 PM
  #1  
doje's Avatar
doje
Thread Starter
Race Director
Supporting Lifetime Gold
St. Jude 15 Year Donor
20 Year Member
 
Joined: Apr 2005
Posts: 11,138
Likes: 11
From: Fremont CA
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18-'19-'20
NCM Sinkhole Donor
Default Code P0751 ??

OK, I am getting a code that is troubling me....

10-PCM P0751 H C

I've done a bunch of poling around here looking for info, and every person that has this code is as a result of putting in a High Stall Torque Converter. However, I am running a STOCK torque converter. So, in my case, what could this mean?
Reply
Old Jan 9, 2009 | 08:46 PM
  #2  
lucky131969's Avatar
lucky131969
Tech Contributor
15 Year Member
Active Streak: 30 Days
Community Builder
Liked
 
Joined: Jan 2007
Posts: 19,358
Likes: 1,127
From: Dyer, IN
Default

Originally Posted by doje
OK, I am getting a code that is troubling me....

10-PCM P0751 H C

I've done a bunch of poling around here looking for info, and every person that has this code is as a result of putting in a High Stall Torque Converter. However, I am running a STOCK torque converter. So, in my case, what could this mean?
The service manual gives a pretty thorough explanation of what sets this code.
Reply
Old Jan 9, 2009 | 08:56 PM
  #3  
doje's Avatar
doje
Thread Starter
Race Director
Supporting Lifetime Gold
St. Jude 15 Year Donor
20 Year Member
 
Joined: Apr 2005
Posts: 11,138
Likes: 11
From: Fremont CA
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18-'19-'20
NCM Sinkhole Donor
Default

Originally Posted by lucky131969
The service manual gives a pretty thorough explanation of what sets this code.
I read it, but it's all Greek to me. Can someone translate from "Technician" to English?
Reply
Old Jan 9, 2009 | 09:09 PM
  #4  
Bill Dearborn's Avatar
Bill Dearborn
Tech Contributor
25 Year Member
Liked
Top Answer: 1
Top Answer: 3
 
Joined: Oct 1999
Posts: 41,030
Likes: 9,786
From: Charlotte, NC (formerly Endicott, NY)
Default

The code indicates there could be a problem on a shift solenoid valve or an associated hydraulic circuit in the transmission. One of the possible causes are damaged seals on the valve.

If you have trouble reading the diagnostic you really should go to a dealer or qualified transmission shop to get the trouble analyzed and repaired.

Bill
Reply
Old Jan 9, 2009 | 09:10 PM
  #5  
lucky131969's Avatar
lucky131969
Tech Contributor
15 Year Member
Active Streak: 30 Days
Community Builder
Liked
 
Joined: Jan 2007
Posts: 19,358
Likes: 1,127
From: Dyer, IN
Default

Originally Posted by Bill Dearborn
The code indicates there could be a problem on a shift solenoid valve or an associated hydraulic circuit in the transmission. One of the possible causes are damaged seals on the valve.

If you have trouble reading the diagnostic you really should go to a dealer or qualified transmission shop to get the trouble analyzed and repaired.

Bill
Reply
Old Jan 9, 2009 | 09:56 PM
  #6  
aleadfoot's Avatar
aleadfoot
Pro
 
Joined: Apr 2007
Posts: 504
Likes: 0
Default

Had that code after a tranny install. Check the connector at the trans for a bad pin or socket. Do the doors lock cycle, if you shift? It will sometimes lurch on start up. I finally had the issue resolved via a PCM tune... highly recommended to synch up your drive train.. my locks still cycle but the code doesnt set anymore. Drove me nuts for awhile but it was in the PCM not the connectors or the solenoids
Reply
Old Jan 9, 2009 | 10:09 PM
  #7  
doje's Avatar
doje
Thread Starter
Race Director
Supporting Lifetime Gold
St. Jude 15 Year Donor
20 Year Member
 
Joined: Apr 2005
Posts: 11,138
Likes: 11
From: Fremont CA
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18-'19-'20
NCM Sinkhole Donor
Default

Originally Posted by aleadfoot
Had that code after a tranny install. Check the connector at the trans for a bad pin or socket. Do the doors lock cycle, if you shift? It will sometimes lurch on start up. I finally had the issue resolved via a PCM tune... highly recommended to synch up your drive train.. my locks still cycle but the code doesnt set anymore. Drove me nuts for awhile but it was in the PCM not the connectors or the solenoids
Never had any issues with the door locks. Sounds like a different animal. I know that the code can be disabled during a PCM tune which makes sense if you are getting nuisance codes after a TC upgrade. I would guess that your tuner just hid the problem by disabling the code.
Reply

Get notified of new replies

To Code P0751 ??





All times are GMT -4. The time now is 04:57 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE