Speed limiter

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Speed limiter

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Speed limiter - 1/28/2008 9:12:18 AM

Pescao

Posts: 1
Joined: 1/28/2008
Status: offline

Hi Guys,

I'm new at this forum, hope to get help about a speed limiter on my Endeavor 04. How can I get rid of it? Can't go faster than 110 mph, seems like the car dies at tht speed.

Anyone nows?

Thanks

Post #: 1

RE: Speed limiter - 1/29/2008 5:27:10 PM

mwsku83

Posts: 1
Joined: 1/29/2008
Status: offline

There are a few reasons manufacturers use speed limiters, one of which is to ensure the tire speed rating is not exceeded. The 2004 Endeavor comes standard with Firestone Turanzas, which have a "T" speed rating (up to 118 MPH). Have you replaced the original tires with ones rated for higher speeds? Also, SUV's have a tendency to be top heavy and therefore prone to roll-overs. High speed maneuvering is probably one of the better ways to flip over.

Most modern fuel injected cars don't have a dedicated governer device, but monitor a speed sensor and limit revs or cut off fuel supply to the engine when a predetermined limit is reached. This is all done in the ECU. So your options are to either reprogram the ECU (which can be easy but expensive with third-party tools), or keep the ECU from knowing how fast the vehicle is traveling. This is easy and cheap, but may have undesireable consequences. All you need to do is find out which wire going to the ECU is the VSS (vehicle speed sensor) and disconnect (read "cut") it. You can see the inherent problem in this - while your ECU will not know your speed (and when to limit it), neither will you. So, I don't recommend this. Actually, I don't recommend disabling any vehicle safety features, so do any of this at your own risk.

I do not have any service manuals and/or wiring diagrams so I cannot tell you how to disable the VSS input to the ECU, but if you're resourceful you may be able to find the info online. Also, the VSS is located at one of the wheels so you may be able to find it without a wiring diagram if you're so inclined.

Oh, and don't do this.

(in reply to Pescao)

Post #: 2

RE: Speed limiter - 1/30/2008 11:52:14 AM

RMUDBUGS

Posts: 312
Joined: 11/15/2006
Status: offline

All the Endeavors I've seen come with Goodyear Intergety tires in a "T" speed rating.

Do you really need to go any faster?

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(in reply to mwsku83)

Post #: 3

RE: Speed limiter - 1/30/2008 12:33:41 PM

kweef

Posts: 208
Joined: 12/18/2007
Status: offline

cant u just flash the ecu and set the governer to a higher speed?

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