S13 speed limiter removal info for y'all... - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

orange-grey · 09-07-2002, 08:08 PM

I read someone's post about removing the speed cut on an S14 a couple days ago and thought I would try it on my S13. It involved disconnecting the 5th gear sensor on the trans and cutting a yellow ECU wire with a green stripe and two silver dots every inch or so. On the S13 (at least mine) there is no such wire, but a yellow wire with a green stripe and a single silver band about every inch. There's actually two such wires, but only one goes into the ECU while the other bypasses it. I checked my Chilton's schematic and confirmed that this is still the speedo wire. I figured theres enough slack to splice it back together if it didn't work, so I went ahead and cut the one going into the ECU. Whoo-hoo, I took it out in the country and managed to wrap the speedo needle to the first odometer number! Although this proceedure is supposed to turn on the check engine light on the S14, mine has not come on. It flashes on startup, so I'm sure it works. I might put a switch in the kickpanel so I can turn it on or off if the light ever goes on. The 5th gear sensor is the same as the S14, its the rearmost one in the cluster of three small sensors on the right side of the tranny. Hope this helps somebody out there. BTW, my S13 is a '91 with the stock KA24DE and ECU. And of course, I'm not responsible if you screw up, get a ticket, blah blah blah, etc.

Natty · 09-08-2002, 12:46 PM

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (orange-grey @ Sep. 06 2002,10:08)</td></tr><tr><td id="QUOTE"> Whoo-hoo, I took it out in the country and managed to wrap the speedo needle to the first odometer number!</td></tr></table><span id='postcolor'>
Heh, you're my hero  <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/thumbs-up.gif" border="0" valign="absmiddle" alt=':thumbsup:'>
I read that one post and allt he side effects scared me off, then at Radio Shack today, I saw some switches I could mount on the kick panel if I extended the wires. Just like you are thinking about doing.

hell, I may try that. I tried to whoop up on an automatic riced out Saturn SC2 on the interstate and I had it until I was coming up to my governor, so I backed off  <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/cry.gif" border="0" valign="absmiddle" alt='

'>

Thanks for being cool enough to be a guinea pig <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/sly.gif" border="0" valign="absmiddle" alt=':sly:'>

Jeff

luke91 · 09-08-2002, 02:38 PM

any way to do it to an s13 sr20det?

SHINCHU · 12-08-2002, 11:16 PM

hahaaha yeah i clipped my wire (got that much from 240sx.org) but the tranny stuff was scaring me. the guy in the race and he tried 5th and nothing happened?! scary. and yeah i was eating an SC2 also until rev limit or whatever kicked in, even after i cut the green wire! i mean, i got a few more mph out of her but geez, that saturn kept on pulling! DOH! well now that im swapping in this new KA, i'll just um, "forget" to plug in that last wire on the right side of the tranny. heheheheh. thanks guys. and yeah, it would be cool if someone found a trick like this for the SR for when i eventually put that engine in. WANGAN RACING RULES! until you hit a tree and die.

chris

09-08-2002, 12:46 PM	#2
Natty Zilvia Addict Join Date: Dec 2001 Location: Nashville, TN Posts: 944 Trader Rating: (0) Feedback Score: 0 reviews	</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (orange-grey @ Sep. 06 2002,10:08)</td></tr><tr><td id="QUOTE"> Whoo-hoo, I took it out in the country and managed to wrap the speedo needle to the first odometer number!</td></tr></table><span id='postcolor'> Heh, you're my hero  <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/thumbs-up.gif" border="0" valign="absmiddle" alt=':thumbsup:'> I read that one post and allt he side effects scared me off, then at Radio Shack today, I saw some switches I could mount on the kick panel if I extended the wires. Just like you are thinking about doing. hell, I may try that. I tried to whoop up on an automatic riced out Saturn SC2 on the interstate and I had it until I was coming up to my governor, so I backed off  <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/cry.gif" border="0" valign="absmiddle" alt=''> Thanks for being cool enough to be a guinea pig <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/sly.gif" border="0" valign="absmiddle" alt=':sly:'> Jeff __________________ 1991 White 240sx Fastback LE, rusty spoiler, weak driveshaft, exhaust rattle.... Rattles are just your cars way of saying 'I love you.'

09-08-2002, 02:38 PM	#3
luke91 Zilvia Member Join Date: Sep 2002 Location: Pittsburgh, PA Age: 42 Posts: 218 Trader Rating: (0) Feedback Score: 0 reviews	any way to do it to an s13 sr20det? __________________ '91 fastback.  '97 S13 blktop SR20DET.  Cstm Frnt Mnt IC w/ cstm 2 1/2" piping.  stnls stl fltr.  3" cstm DP & exhst w/N1 muff.  Walbro FP.  ACT 6 pck cltch.  Go Fast Bits crnk plly.  Ground Control coils.  KYB AGX shks.  12.98@106 w/g-tech pro.  17psi.  All work and fabrication done by ME

09-07-2002, 08:08 PM	#1
orange-grey Leaky Injector Join Date: Aug 2002 Posts: 94 Trader Rating: (0) Feedback Score: 0 reviews	I read someone's post about removing the speed cut on an S14 a couple days ago and thought I would try it on my S13. It involved disconnecting the 5th gear sensor on the trans and cutting a yellow ECU wire with a green stripe and two silver dots every inch or so. On the S13 (at least mine) there is no such wire, but a yellow wire with a green stripe and a single silver band about every inch. There's actually two such wires, but only one goes into the ECU while the other bypasses it. I checked my Chilton's schematic and confirmed that this is still the speedo wire. I figured theres enough slack to splice it back together if it didn't work, so I went ahead and cut the one going into the ECU. Whoo-hoo, I took it out in the country and managed to wrap the speedo needle to the first odometer number! Although this proceedure is supposed to turn on the check engine light on the S14, mine has not come on. It flashes on startup, so I'm sure it works. I might put a switch in the kickpanel so I can turn it on or off if the light ever goes on. The 5th gear sensor is the same as the S14, its the rearmost one in the cluster of three small sensors on the right side of the tranny. Hope this helps somebody out there. BTW, my S13 is a '91 with the stock KA24DE and ECU. And of course, I'm not responsible if you screw up, get a ticket, blah blah blah, etc.

12-08-2002, 11:16 PM	#4
SHINCHU Zilvia Member Join Date: Nov 2002 Location: Temecula, CA Age: 44 Posts: 244 Trader Rating: (0) Rides Gallery: SHINCHU Feedback Score: 0 reviews	hahaaha yeah i clipped my wire (got that much from 240sx.org) but the tranny stuff was scaring me. the guy in the race and he tried 5th and nothing happened?! scary. and yeah i was eating an SC2 also until rev limit or whatever kicked in, even after i cut the green wire! i mean, i got a few more mph out of her but geez, that saturn kept on pulling! DOH! well now that im swapping in this new KA, i'll just um, "forget" to plug in that last wire on the right side of the tranny. heheheheh. thanks guys. and yeah, it would be cool if someone found a trick like this for the SR for when i eventually put that engine in. WANGAN RACING RULES! until you hit a tree and die. chris