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Who's Installed the SLP Speedo Recalibration Box

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Old Mar 19, 2006 | 06:02 PM
  #1  
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Who's Installed the SLP Speedo Recalibration Box

I just spent four freaking hours tracing wires in my 93 to get this thing wired in, and have succeeded in doing nothing but making my speedo NOT work at all.

I need info from people who have actually put one of these in. How fickle are they?? I got it all wired in EXACTLY as the directions showed, and went through the test procedure. Dip 1, the red LED came on. That's all that worked right. The speedo didn't go to 80 when the 2nd dip was turned on and didn't peg when the third dip was turned on.

Anyone have any ideas?
Old Mar 19, 2006 | 09:08 PM
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Re: Who's Installed the SLP Speedo Recalibration Box

where did you find one i need one.
Old Mar 20, 2006 | 05:01 AM
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Re: Who's Installed the SLP Speedo Recalibration Box

I've had one for each of my two 93's for well over a year now, but haven't had the need to install them until now. Sadly, I think that the one box I've already installed is bad as it's not seeing any input signal and I KNOW that my input signal is good as my speedo was working fine.

I got them off of eBay for $71 each way back when, brand new.
Old Mar 20, 2006 | 06:43 AM
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Re: Who's Installed the SLP Speedo Recalibration Box

I thought about getting one of those since PCM for elss told me they couldnt recalibrate the speedos in the '93s, but I'm not so sure I want one now. I've heard your story from other people too. These things sound like a pain in the *** and oly went from 3.23 to 3.42 so my speedo's only off 5-8 mph

Brandon
Old Mar 20, 2006 | 03:52 PM
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Re: Who's Installed the SLP Speedo Recalibration Box

Originally Posted by trymy6
I thought about getting one of those since PCM for elss told me they couldnt recalibrate the speedos in the '93s, but I'm not so sure I want one now. I've heard your story from other people too. These things sound like a pain in the *** and oly went from 3.23 to 3.42 so my speedo's only off 5-8 mph

Brandon
They're primarily used on 93's as we had no way to recalibrate the speedo via the computer. About the only other option is the Dakota Digital SGI-5 which I'm looking into as both of my 93's are getting either gears (purple car, this week moving to 4.10's ) or a new rear (black car, strange 12 bolt with 3.73's already in it) and I'm looking like I'm for sure down one box right now.
Old Mar 20, 2006 | 04:51 PM
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Re: Who's Installed the SLP Speedo Recalibration Box

I've used one in my 93 ( manual trans ) for over 4 years with no problem. I'm not near the car now but I can check later this week. Like I said, it's been a few years since i installed it, but I think the instruction had something about cutting a wire to a diode? BUT PLEASE double check that before you take my word on it until it can be verified!

Where are you located at in NJ. I'm currently working in Ewing NJ. I'm sure I can get some of the NJFBOA.ORG to give us a hand too.

John
Old Mar 20, 2006 | 04:57 PM
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Re: Who's Installed the SLP Speedo Recalibration Box

I've poured through the instructions and didn't see anything about splicing in any diode. All the notes it made for the 93's was the one about making sure you splice into the green/white wire AFTER the split that's after CKT 220 that goes to the speedo. The green/white wire coming from CKT 220 splits into two green/white wires just before the center of the dash; One goes to the cruise module and the other goes to the speedo.

I traced from the speedo back yesterday and KNOW that I'm on the right wire as I test drove the vehicle and had no speedo function after cutting said wire.

I just got done farting around with the other box I had on hand. This one is at least trying to work, but it goes dead at approx 15 MPH. It just drops back to zero until I'm under 15 MPH and it will come back to life. I have a feeling that this one is **** up also as I've double/triple checked that I've got good connections. Stinking SLP's help in the instructions is "check your connections, ground, and wiring. Big help there.

No wonder they pulled these things off the market. THey're pieces of crap.

Anyone know what the correction factor percentage is for a 3.23 to 4.10 swap off hand by chance. I think I'm going to need that in the interim come Thursday.
Old Mar 20, 2006 | 04:58 PM
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Re: Who's Installed the SLP Speedo Recalibration Box

I've poured through the instructions and didn't see anything about splicing in any diode. All the notes it made for the 93's was the one about making sure you splice into the green/white wire AFTER the split that's after CKT 220 that goes to the speedo. The green/white wire coming from CKT 220 splits into two green/white wires just before the center of the dash; One goes to the cruise module and the other goes to the speedo.

I traced from the speedo back yesterday and KNOW that I'm on the right wire as I test drove the vehicle and had no speedo function after cutting said wire.

I just got done farting around with the other box I had on hand. This one is at least trying to work, but it goes dead at approx 15 MPH. It just drops back to zero until I'm under 15 MPH and it will come back to life. I have a feeling that this one is **** up also as I've double/triple checked that I've got good connections. Stinking SLP's help in the instructions is "check your connections, ground, and wiring. Big help there.

No wonder they pulled these things off the market. THey're pieces of crap.

Anyone know what the correction factor percentage is for a 3.23 to 4.10 swap off hand by chance. I think I'm going to need that in the interim come Thursday.
Old Mar 26, 2006 | 01:35 PM
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Re: Who's Installed the SLP Speedo Recalibration Box

Bump.....still trying to get this infernal thing working.
Old Mar 27, 2006 | 08:53 PM
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Re: Who's Installed the SLP Speedo Recalibration Box

Well, couple of notes;

I spoke with a rep at SLP today and was informed that the product was pulled due to unreliability. Plain and simple.

I ordered a Dakota Digital box AND a cyberdyne box today. Going to do some playing around with it now.

But on a whim today I went out and swapped the output wire from the orange to the yellow wire. Bam, everything worked. Or so I thought. While the speedo was reading spot on, the odometer/trip meter weren't working hardly at all. I'd sporadically register .1 mile, got a total of about .8 on a 10 miles round trip to dinner. Then on the way home from a friends house, the speedo wasn't working at all again.

DO NOT BUY AN SLP SPEEDO RECALIBRATION BOX. That is all.
Old Mar 29, 2011 | 09:49 PM
  #11  
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Re: Who's Installed the SLP Speedo Recalibration Box

Worked fine for me for 5+ years.
I just wish I hadn't lost the instructions LOL
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