Speed limit on stock ECU?
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- Shane001
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- Shane001
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Shane, found this on FTOOC.
They go on about kph to mph conversions, but I think the wire in question they cut, is the one you're looking for..
They go on about kph to mph conversions, but I think the wire in question they cut, is the one you're looking for..
Yes......
You dont need any more stuff to delimit, just the know how.
1. Remove LH side kick plate by gently prising upwards
2. Undo passenger LH lower plate by unscrewing the capped bolt at the front then from the middle of the plastic section gently prise from the bottom and slide back (this is the bit that the Hoops are on).
3. Locate the Engine ECU and the required connector, it is the lower forward most connector. Remove the connector carefully and locate a yellow and white wire (mine also had a silver spot on it) and it is the 5th pin of the connector with no wire above. Note: There is another yellow and white wire on the lower connector nearest the door it is not this one!!!
4. Drop the steering wheel to its lowest position.
5. Remove the Speedo console surround by undoing the two securing screws.
6. Remove the four retaining screws and pull out the speedometer console completely and locate the black box converter on the rear of the Speedo. There is a circuit track that comes in to the Speedo that is cut and each side of the cut there is a wire going to the black box. The wire coming from the main connector before the cut is in kmh feed from the gearbox sensor and the wire after the cut, nearest the Speedo center screw, is the converted signal from the black box in mph.
7. The kmh feed wire is the one we need to interrupt to the engine ECU and feed it from the mph signal - (so unless your car can do 180mph+ the engine ECU thinks you are going a lot slower). It is important to interrupt the wire only at the engine ECU and not at the speedometer end or the feed to the INVECS ECU and gear change points are going to get screwed.
8. Feed a length of wire across the floor of the car behind the centre console and up into the Speedo recess hole.
9. Solder this wire to the mph feed - (blue wire from the black box on mine), but it is the circuit track running from the SP+ post. If you don?t have a soldering iron or don?t feel confident using one simply unscrew the SP+ screw and make a loop and wrap around the screw before tightening.
10. One end done.
11. Re-assemble the Speedo console by reversing 6,5 & 4.Not forgetting to lock the steering column.
12. Now be brave - at the engine ECU cut the yellow and white wire (found in step 3) as far away from the connector as possible but leaving at least 20mm from the loom - just in case it all goes wrong and you want to reconnect it. Tape off the wire end coming from the wiring loom and strip about 5mm of insulation from the connector wire end. Now crimp or use your choc bloc to connect your mph wire coming from the back of the Speedo black box to the connector end wire. Re-insert the connector.
13. Reverse steps 1 & 2 and tuck the wire away behind the floor carpet.
- millsy
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limits at 194kph, confirmed, i live on a road with "no limit", i hit that nearly daily, sh*t myself every time it kicks in, didnt realise it cuts the acceleration, every time i think i blew my engine or sumthing.. but its confirmed at that speed by my tomtom and speedo.... but dont take my word for it, coz thats no fun
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- vipfto
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- aza013
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if you get a speedo that gives you a 260-270kph reading that would be all you need.vipfto wrote:Yip had to around 230 before (private roads in country in NZ) still had some more go to I reckon but was slow to move from thereI8A4RE wrote:Found out last night....... I definitly dont have a speed limiter no more.
Anyone got a 300kph speedo?
I have topped my car out at 250kph on a dyno.
- Shane001
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millsy wrote:limits at 194kph, confirmed, i live on a road with "no limit", i hit that nearly daily, sh*t myself every time it kicks in, didnt realise it cuts the acceleration, every time i think i blew my engine or sumthing.. but its confirmed at that speed by my tomtom and speedo.... but dont take my word for it, coz thats no fun
dear god where do you live ... wanna room mate?
- aza013
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