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Speedlimit problem


Jorkki
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Galant VR-4 org Post #: 469188 posted 04/25/07 01:21 AM     Remind Me!  Send Private Message   Edit Post      
Hello, i have little problem with my car (galant vr4 -91) for the speedlimit sensor..
My car is "japanese version" so the topspeed is 180 km/h (limited) so my question is how to change or eliminate the sensor?

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zzz_vr4
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Galant VR-4 org Post #: 469191 posted 04/25/07 01:58 AM     Remind Me!  Send Private Message   Edit Post      
remove the instrument cluster and there's a wire behind the speedometer held in place with a screw. remove that and you'll have no speed limit

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brisvr4
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Galant VR-4 org Post #: 469192 posted 04/25/07 02:10 AM     Remind Me!  Send Private Message   Edit Post      
The following text passage is "borrowed" from Rob323 over in aus. (thanks Rob!)

Below is a photo of the back of the instrument cluster on a late model J spec. I'm pretty sure that if you remove the top screw circled in green, that you remove both the speed cut and the 105 kph chime but still pass the speed signal to the ecu. If you remove the bottom screw circled in green, you still get rid of the speed cut, but still have the chime and still pass the speed signal to the ecu. If you disconnect the grey wire, you disconnect EVERYTHING including the speed signal to the ecu.

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zzz_vr4
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Galant VR-4 org Post #: 469193 posted 04/25/07 02:19 AM     Remind Me!  Send Private Message   Edit Post      
so is there a negative effect of not having a speed signal to the ECU? or does it make the ECU think the car isnt moving at all? i'm not using vr4 instrument cluster, so i guess i have none of intelligent features of the vr4 cluster :P

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Jorkki
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Galant VR-4 org Post #: 469203 posted 04/25/07 04:58 AM     Remind Me!  Send Private Message   Edit Post      
Ok, so that doesn`t harms the ECU if i do that? I have Greddy E-manage support tool to modifying to the ECU and turbosmart bleed valve to controlling the bar/psi. So i need more speed be cause it`s cut the speed to 4th gear..

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zzz_vr4
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Galant VR-4 org Post #: 469204 posted 04/25/07 05:04 AM     Remind Me!  Send Private Message   Edit Post      
no, it wont damage the ECU at all. but shouldn't e-manage be able to by pass the speed limiter?

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Jorkki
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Galant VR-4 org Post #: 469288 posted 04/25/07 09:14 AM     Remind Me!  Send Private Message   Edit Post      
I don`t know, may be.. but that speed limit sensor can`t remove or tuning pass the e-manage, so is it possible to fix or change the value for ohms to some kind of potentiometer? I heard that for somewhere...

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curtis Galant VR4.org Moderator
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475/1000


Galant VR-4 org Post #: 469431 posted 04/25/07 12:35 PM     Remind Me!  Send Private Message   Edit Post      
If one of you JDM members has the pin out on the harness it would be helpful...I have a JDM rs cluster I've been wanting to put in the usdm car.


I know over kill but it looks damn cool and has lights and stuff that I don't even know what there for. The cluster reads 220 and has the same revs/min as the us so thats the same and will work but the tach and speedo is mounted opposite and the wires are all differnet so they will have to be repinned.



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Hertz Galant VR4.org Administrator
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Galant VR-4 org Post #: 469439 posted 04/25/07 12:42 PM     Remind Me!  Send Private Message   Edit Post      
Hmm, can we datalog speed?



Ryan Hertz

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OldHairyBastard
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Galant VR-4 org Post #: 469507 posted 04/25/07 03:05 PM     Remind Me!  Send Private Message   Edit Post      
The speed wire is the same pin on both USDM & JDM ECU. I have a JDM wiring harness and ECU and it has the same pin for the speed sensor as for the USDM. I have a USDM non turbo cluster and it is not wired the same as the turbo and doesn't have a speed chime but does cut out at 180KMH/115MPH. I'm thinking of placing a switch between the speed sensor wire from the cluster and the ECU so all I have to do is flick the switch for when I want to go over 115MPH and then flick it back when I'm done. I measure the KMH on my AVCR and have changed to 3 different speed sensors and all of them are very jumpy and don't give a very steady reading. I was thinking that is why our cruise controls are so finicky.

Doug



1990 G-GSX-RS Conversion-138M
1999 Toyota Camry 3.0L V6-200M
2008 Toyota Sequoia 5.7L V8-113M
2013 Toyota Tundra 5.7L V8-82M
2017 VW Passat 1.8L Turbo-16M


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keydiver
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Galant VR-4 org Post #: 469548 posted 04/25/07 04:19 PM     Remind Me!  Send Private Message   Edit Post      
I don't think the cruise control uses the speed sensor, but I'd have to check. I think its just rpm.
Anyway....the speed limiter can also be removed from the chip code if you have an EPROM.

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Jorkki
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Galant VR-4 org Post #: 469746 posted 04/25/07 10:22 PM     Remind Me!  Send Private Message   Edit Post      
Ok, so.. what differents are beetween the ECU and the EPROM? If you have any pics or something documents where i can see and check for my vr4?

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Jorkki
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Galant VR-4 org Post #: 469816 posted 04/26/07 05:54 AM     Remind Me!  Send Private Message   Edit Post      
Please???? photos or something else?

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keydiver
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Galant VR-4 org Post #: 469820 posted 04/26/07 06:03 AM     Remind Me!  Send Private Message   Edit Post      
If you look at the EPROM in your JDM ECU is should have a number on it, like E952 or E769:
http://www.tmo.com/howto/ecu1g/checkeprom.htm
The E952 and E769 code has a speed limiter in it, which is easily defeated by changing one byte.

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Jorkki
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Galant VR-4 org Post #: 469830 posted 04/26/07 06:20 AM     Remind Me!  Send Private Message   Edit Post      
Than you Keydriver! i check that.

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Jorkki
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Galant VR-4 org Post #: 469831 posted 04/26/07 06:22 AM     Remind Me!  Send Private Message   Edit Post      
Sorry, came little mistake... "learning to write" heh.. I mean Keydiver.

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Scientist
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Galant VR-4 org Post #: 474125 posted 05/04/07 11:28 AM     Remind Me!  Send Private Message   Edit Post   
the other ways is using the APexi Rev Speed Meter or using a SLD from HKS or Greddy



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