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Possible speed limiter removal...will this work??

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Old Jul 5, 2001 | 11:18 AM
  #1  
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Ok, I just thought of this. I havent had time to go home and look at any wiring diagrams yet so bear with me.

I have bypassed the limiter on my car by unplugging the speed sensor from the tranny. This works fine except for the lack of speedo and odometer function.

The way I understand it is this, the speed sensor signal goes into the ECU and then out to the speedo. Could the ECU be taken out of the loop? Just cut the wire or install a jumper directly from the speed sensor to the speedometer. As long as the ECU doesnt "interpret" the signal before it goes to the speedo, this might work.

Does anyone know one way or the other?

I'll give this a try when I get home and report results...
Old Jul 5, 2001 | 11:45 AM
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yes please.. i will be waiting .. nail biting and all
Old Jul 5, 2001 | 11:47 AM
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Good luck.
Old Jul 5, 2001 | 02:00 PM
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May the NOS be with you
Old Jul 5, 2001 | 02:07 PM
  #5  
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Great, I guess I'm the guinea pig again.

heh heh..."I live my life one quarter pounder at a time.."
Old Jul 5, 2001 | 06:18 PM
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do it
Old Jul 5, 2001 | 07:56 PM
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Yes, keep us posted.
Old Jul 5, 2001 | 08:12 PM
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check general forum
Originally posted by Synki
Yes, keep us posted.
Old Jul 5, 2001 | 08:12 PM
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Originally posted by mzmtg
Ok, I just thought of this. I havent had time to go home and look at any wiring diagrams yet so bear with me.

I have bypassed the limiter on my car by unplugging the speed sensor from the tranny. This works fine except for the lack of speedo and odometer function.

The way I understand it is this, the speed sensor signal goes into the ECU and then out to the speedo. Could the ECU be taken out of the loop? Just cut the wire or install a jumper directly from the speed sensor to the speedometer. As long as the ECU doesnt "interpret" the signal before it goes to the speedo, this might work.

Does anyone know one way or the other?

I'll give this a try when I get home and report results...
According to diagrams in the factory service manual, signals from the Vehicle Speed Sensor are used to control ignition and fuel mixture. If this is so, your engine will not run well without the VSS signal. Don't be surprised to see that annoying Check Engine Light with Diagnostic Trouble Code 0104.
Old Jul 5, 2001 | 09:16 PM
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I tried this back in '96 and the Check Engine light does indeed light. The second thing is that cruise control no longer works.

-V
Old Jul 5, 2001 | 09:39 PM
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How Fast?

What would the new "uncontrolled" limit be if you do unplug the sensor? How many MpH more are you really pushing out of it?
Old Jul 6, 2001 | 05:31 AM
  #12  
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Re: How Fast?

Originally posted by Vyrus
What would the new "uncontrolled" limit be if you do unplug the sensor? How many MpH more are you really pushing out of it?
It works. Read my post in the general forum. No drivability problems so far. Th elimiter was set at less than 120mph...I just went almost 140 last night, so there is a little more to go.

I've only ever really cursed the limiter twice in the past. Once, I was running on I-285 in ATL with this other max, an SE, and he kept leaving me behind. Another time I was racing a modded integra on the freeway adn I would pull on him a little until I hit the damn limiter and then he would be gone.
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