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Is the limiter something new in the 2000 on up Tibs? I have had my 99 over 130 stock.
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The limiter is there on first gen tiburons sold in the USA. Those are the only ones I can verify. Some Crazy Canadians claim to have exceeded 135 in their Gen1's AND gen2's, so they might not have the Speed Limiter. I have also read that some USA Gen2 owners claim to have exceeded the 135 MPH mark, seeming to indicate they do NOT have the speed governor either.
The USA first gens DO have it. It limits speed to 120 MPH. This is speed read at the ECU, not speed as seen on the speedometer. Your speedometer can be off by as much as 10%, so an indicated 130, cound reall be 119, and so you would not have run into the limiter.
The Speed signal is sent from the Gauge Cluster down to the ECU. It is sent as a series of "pulses". The faster the pulses, the faster the speed. So it is not a variable voltage thing that you can simply cut or change. If you remove that signal from the ECU, the car has a tendancy to die when you push in the clutch...usually when coming to a stop at stop lights, but it can also happen at speed. NOT A GOOD THING! The ECU uses that speed sensor to keep the Engine RPM up between shifts, and to keep the engine running at idle when stopped. With no Speed signal, the ECU always things the car is stoped, and it tries to bring the engine down to 800 RPM idle every time the clutch is depressed. It is a BAD thing if you are doing 80 shifting from 3rd to 4th...and the engine dies. It is also a bad thing to be braking as you approach a red light...and have the engine die and loose power steering and power brakes....
I DO NOT reccomend that ANYONE mess with this signal wire to the ECU. #1. I have experienced the above and more when I cut my VSS wire(Vehicle Speed Sensor). #2. you are messing with a signal wire to the ECU, so you have the ability, if something goes wrong, to damage the ECU, or the gauge cluster (the 2 ends of the VSS wire).
The Speed govener/limiter is there on first gen USA Tiburons for insurance reasons, and becuase the stock first gen tires are only speed rated to 125. It exists in the wiring diagrams for ALL Tiburons/Elantras, but it does not state in the service manuals or HMA service website what speed the ECU's are set to. The wire exists on ALL tiburons/Elantras. The speed limiter itself would be set in the ECU, so it is possible since the Candians get KPH gauges that are calibrated differently than US spec MPH gauges...that their speed limiter is set differently, or none at all.
<hr width=60% noshade size=1 align=left>Leave it to Random to Needlessly complicate things.
