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Trying to remove my speed cut

StressedPoet654
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StressedPoet654 Apprentice

StressedPoet654

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So I've had my r32 coupe for a bit now and I want to get around the 180kph limiter. Originally the car was 25de auto but has been swapped to 25det s2 with 20det manual. It also has a z32 ecu. I've seen that disconnecting the vehicle speed sensor wire (pin 53 if I remember correctly) from the ECU can stop the limiter working (while also interfering with power steering) but this did not seem to work for me as I put in a switch to easily disconnect and reconnect it but it will still stop at 180kph regardless. I am unsure about installing a speed limit defender right now as I havent had time to do any real research into it especially with the mess of wires that goes into the ecu from all the swapped things and stuff. 

I'm really not to sure what I'm looking at and why it's not doing what it's supposed to so if anyone has some more experience and can help that would be sweet. Cheers guys.

Edited by StressedPoet654
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StressedPoet654 Apprentice

StressedPoet654

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17 hours ago, GTSBoy said:

The correct answer is Nistune.

Might need to expand on that a little for me. I've never done anything with ecus so I dont know what to search up man.

Robocop2310 Experienced

Robocop2310

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19 hours ago, StressedPoet654 said:

So I've had my r32 coupe for a bit now and I want to get around the 180kph limiter. Originally the car was 25de auto but has been swapped to 25det s2 with 20det manual. It also has a z32 ecu. I've seen that disconnecting the vehicle speed sensor wire (pin 53 if I remember correctly) from the ECU can stop the limiter working (while also interfering with power steering) but this did not seem to work for me as I put in a switch to easily disconnect and reconnect it but it will still stop at 180kph regardless. I am unsure about installing a speed limit defender right now as I havent had time to do any real research into it especially with the mess of wires that goes into the ecu from all the swapped things and stuff. 

I'm really not to sure what I'm looking at and why it's not doing what it's supposed to so if anyone has some more experience and can help that would be sweet. Cheers guys.

Mate, it’s a Nissan specific ecu module.

Nistune is a real-time tuning suite designed especially for Nissans which provides the ability to:

• Retune factory Nissan Engine Control Units (ECU)
• Monitor gauges and map tracing on your ECU
• Data log from your ECU using consult, wideband and auxiliary inputs
• Perform playback using graphs, gauges and map tracing
• Connectivity for up to two emulators simultaneously
• Loads and Saves files in regular and odd/even formats for chip burning (EPROM/FLASH)

Be sure to get one that is compatible with your engine though it’s not one fits all:

https://www.nistune.com/

 

StressedPoet654 Apprentice

StressedPoet654

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16 minutes ago, GTofuS-T said:

Wouldn't it already have to be a nistune, if it's a z32 ecu running an rb25?

I wasnt 100% on if it was nistune or not but indeed it is. I've still never done anything with an ECU but in short am I able to find somewhere who can plug in their laptop and just remove the speed limiter or is there more to it than that.

StressedPoet654 Apprentice

StressedPoet654

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24 minutes ago, GTSBoy said:

Yes.  Anyone with Nistune software and the required Consult-USB adapter can do it in about 2 minutes.  I'm dead surprised that it is still enabled!

Yeah that's one of the things that was throwing me off. I didnt expect it to still have the limiter if it was aftermarket. Cheers for the help. I'll find a place to get it done. I'd be so lost without help haha. 

Dose Pipe Sutututu Grand Master

Dose Pipe Sutututu

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33 minutes ago, StressedPoet654 said:

Yeah that's one of the things that was throwing me off. I didnt expect it to still have the limiter if it was aftermarket. Cheers for the help. I'll find a place to get it done. I'd be so lost without help haha. 

By default the setting is left at 180km/h for both Speed Limit 1 and 2.

 

Dose Pipe Sutututu Grand Master

Dose Pipe Sutututu

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Posted
4 hours ago, GTSBoy said:

And while that's true, it's usually the first or second thing that gets changed as soon as the board in booted up!

You'll be surprised at some tunes I've seen from "big shops" setup incorrectly 

StressedPoet654 Apprentice

StressedPoet654

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On 11/6/2018 at 9:27 PM, KiwiRS4T said:

Where do you live? I may be able to point you to a tuner.

Sorry for the late reply, I'm in hamilton. Going to a place I think can do some work tomorrow. Speedwell tune and service was recommended by a workmate so I'm trying there.

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