Fuel cut off speed

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Jul 26, 2010 | 10:23 AM

petermal

Thread Starter

Heel & Toe

Joined: Jul 2009

Posts: 20

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Fuel cut off speed

What is required to change the fuel cut off speed?

Jul 26, 2010 | 10:40 AM

87SAM

Safety Car

Joined: Jan 2001

Posts: 4,386

Likes: 689

From: Boise ID

HP Tuners or EFI Live.

Jul 26, 2010 | 03:29 PM

CHJ In Virginia

Safety Car

Joined: Nov 2000

Posts: 4,549

Likes: 30

From: Shenandoah Valley Virginia

You need to find someone with the proper tool (GM Tech II or similar) and software to change the computer program on the car. You can raise the RPM limit before shutoff.

Jul 26, 2010 | 03:48 PM

petermal

Thread Starter

Heel & Toe

Joined: Jul 2009

Posts: 20

Likes: 0

Thanks. Does anyone know the code?

Jul 26, 2010 | 04:19 PM

printmanjackson

Safety Car

Joined: Jul 2005

Posts: 3,572

Likes: 9

From: Jackson Tn

St. Jude Donor '06-'07-'08-'09

with HPT or EFIlive just set it to max 256 I think

Jul 26, 2010 | 05:11 PM

AU N EGL

Team Owner

Joined: Sep 2003

Posts: 43,084

Likes: 33

From: Raleigh / Rolesville NC

isnt fuel cut off speed 180 some mph ?

Jul 26, 2010 | 06:12 PM

printmanjackson

Safety Car

Joined: Jul 2005

Posts: 3,572

Likes: 9

From: Jackson Tn

St. Jude Donor '06-'07-'08-'09

Quote:

Originally Posted by AU N EGL

isnt fuel cut off speed 180 some mph ?

not on mine

gotta love HPT

Jul 27, 2010 | 10:20 AM

kp1

Racer

Joined: Aug 2005

Posts: 465

Likes: 16

In addition to a speed cutoff, there is an RPM (rev) limiter. The base Corvette has the rev limiter set to 6200 RPM's. You can set the speed limit at the max, but you will still be shut off at any speed in which you hit 6200 RPM's unless that is changed also.

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Aug 25, 2012 | 04:53 PM

bradwoods

1st Gear

Joined: Aug 2012

Posts: 1

Likes: 0

brad

Does anyne know if I can reset the fuel-pump shut-off from 1.5mph to 200mph with a Superchips #2865 Flashpaq Tuner? Thanks guys.

Aug 25, 2012 | 04:56 PM

#10

lucky131969

Tech Contributor

Joined: Jan 2007

Posts: 19,398

Likes: 1,139

From: Dyer, IN

Quote:

Originally Posted by bradwoods

Does anyne know if I can reset the fuel-pump shut-off from 1.5mph to 200mph with a Superchips #2865 Flashpaq Tuner? Thanks guys.

http://forums.corvetteforum.com/c5-scan-and-tune-91/

Aug 14, 2018 | 02:17 PM

#11

JH 1998

4th Gear

Joined: Jul 2018

Posts: 4

Likes: 1

Quote:

Originally Posted by 8VETTE7

Nope. GM Tech II CANNOT reset the fuel shutoff value. It can completely reflash the PCM with a load that has the fuel shutoff speed set to a high number. But it CANNOT change that one individual setting.

Correct answer is as stated by 87SAM. HP Tuners or EFI Live tuning software are the ONLY two softwares that can set that individual setting. Maximum setting is 255.

My tech has a good shop and has a great deal of experience with Corvettes. I have a 1998 C5 automatic and he has installed the LMC5 and I still get the "Pull Key" message. My car has had the recall performed that will not allow the steering column to lock. What does my tech need to adjust the speed of the fuel cutoff to 255? Who can he call and what's their phone number for assistance in how to perform the adjustment?
Thanks.

Aug 16, 2018 | 02:26 PM

#12

midnight01

Pro

Joined: Jan 2016

Posts: 550

Likes: 53

From: Fort Myers Florida

Quote:

Originally Posted by JH 1998

No offense, but if he has a great deal of experience with vettes then he should already know the answer to your question. if he doesn't I would start looking for another experience vette tech that knows fuel injected cars are controlled by a PCM that needs a tune to change variables.
Google it.

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