Bypassing fuel cutoff

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Apr 27, 2008 | 09:25 PM

rva33145

Thread Starter

Instructor

Joined: Apr 2007

Posts: 227

Likes: 1

From: Miami Florida

Bypassing fuel cutoff

I have a 99 C5 coupe A4. I understand there is a way of bypassing the ECM to elimate the fuel cutoff normally associated with the steering column lock issue???????

Apr 27, 2008 | 10:35 PM

Oldvetter

Le Mans Master

Joined: Feb 2002

Posts: 6,937

Likes: 21

From: Waldorf MD

There was a post a while back that showed how to re-program the limit up to 232 mph. I forget what software was used. I believe a TECH II can do it, but trying to find a TECH II in non-GM hands is hard (it costs $2,000-3,000 without software updates), and GM Dealers won't re-program limit due to liability.

Apr 28, 2008 | 07:20 PM

C5-BRUCE

Racer

Joined: Jul 2004

Posts: 405

Likes: 0

From: Colorado Springs CO.

Quote:

Originally Posted by Oldvetter

Having followed the column lock issue for years, I'd be very interested to hear of any by-pass to the fuel flow cut-off limit. Many tuners can reprogram various limits without using a Tech II, or so I'm told.

Apr 28, 2008 | 08:32 PM

dudleyd

Racer

Joined: Aug 2005

Posts: 361

Likes: 1

From: Montara Ca

HP tuner's is the software. So far it looks like this is the answer to the fule shut off. Read links below.

http://forums.corvetteforum.com/show....php?t=1945555

Start at post #16 on this one
http://forums.corvetteforum.com/show....php?t=1944829

Apr 28, 2008 | 08:36 PM

Russ K

Burning Brakes

Joined: Jul 2006

Posts: 968

Likes: 12

From: Regina Sask

This is how I disable the column lock fuel shut off with Hp Tuners.

Russ Kemp

Apr 28, 2008 | 10:47 PM

DocAcumen

Instructor

Joined: Sep 2004

Posts: 198

Likes: 1

From: Olive Branch MS

Yes HP Tuners will do the trick.
I had to do that myself.
I had a CLB in my car when I got the problem.
GM tried to do all kinds of things, AKA there fix.
And none of it worked.

I did the flash with HP Tuners, and all worked.....
Well, other than I still throw the codes?
I got a new CLB, hopeing that would solve the codes.
That did not work either? I can now get the pull key wait 10 sec's to go away, if I turn the key a few times before starting. Then I just get the colum lock messasge, whitch can be cleared with the reset.

So the problom is only partially solved.

I sure wish there was a complete fix for this?

maybe a new BCM?

any ideas?

Apr 29, 2008 | 10:03 AM

C5-BRUCE

Racer

Joined: Jul 2004

Posts: 405

Likes: 0

From: Colorado Springs CO.

Quote:

Originally Posted by dudleyd

Thanks for posting these links, they are a BIG eye opener. I was not aware of the link between a failed column lock motor and the inability to successfully install the CLB. Installing a new motor ($541) to reestablish the circuit, only to then disable everything by installing the CLB is outrageous! If there was ever a reason to install the CLB BEFORE a failure occurs, this is it!

I'm equally surprised to learn there is a method to reset GM's fule flow cut-off threshold (2MPH) using HP Tuner to increase the threshold to maximum MPH. Thanks to Russ K for the work he's done researching this critical issue.

If I understand what I read, installing the CLB NOW and reseting the MPH threshold, should forever solve the column lock issue and prevent a fuel flow shutdown?!!

Thanks guys,

Apr 29, 2008 | 10:46 AM

BlkC5vert

Heel & Toe

Joined: Apr 2008

Posts: 16

Likes: 0

Hey all, this is my first post here and am having fuel cutoff issue with my c5 6spd. Many thanks to C5 Bruce for e mails about a possible fix.....it is back in (yesterday) for the 4th time since October. Usually the remove for 10 seconds comes on, I remove and start and everything is O.K. for a few starts....Saturday it did it, it removed the key started and it went to column lock! Well I'll let U know what happens..............