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Product # 5291

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AutoMeter vehicle speed sensors generate the signal you need to make installing an AutoMeter electric speedometer in your vehicle quick and easy. Compatible with GM and Chrysler transmissions with a 7/8" -18 threaded speedometer cable output, this vehicle speed sensor outputs a 16 pulse per revolution (PPR), 12v square wave signal. Featuring a mechanical cable output, this sensor has the ability to retain the mechanical cable in applications with mechanically driven cruise control.


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I have a 1987 Jeep Wrangler with np207 transfer case with mechanical cable output. My tire size is larger than stock. With this sensor and the Autometer electronic speedometer could I calibrate for correct speed? Or would a GPS speedometer be recommended?

Asked by: Steven
Hi Steven, thank you for the question. Yes, this sender (5291) along with any AutoMeter electronic speedometer can be calibrated to your Jeep using our simple "push the button, drive 2 miles, push again" calibration. A GPS Speedometer would also work and would avoid any connection to the transmission and would be calibrated right out of the box.
Answered by: Matt from AutoMeter
Date published: 2018-08-20

I’m doing an ls swap in my 1983 Chevy k20 4x4 will this work to give a vss signal to the engine pcm?

Asked by: Balou
Thank you so much for contacting us. Unfortunately, this, or any of our senders are probably not going to work to drive your PCM. The PCM is looking for a sine wave signal at a very specific pulse per mile rate. This outputs a square wave signal at a different rate. These are designed to drive our gauges. You'll want to use the output from the transmission your PCM is looking for. Sorry for the bad news.
Answered by: Joseph At AutoMeter
Date published: 2018-07-10

does the 1388-m gauge come with a sensor of not what sensor do i use for a turbo 350 teansmission

Asked by: kenA
Hi Ken, thank you so much for contacting us. The 1388-M does not include a sensor. For use with a TH350, you'll want this sender (5291). Hope this helps!
Answered by: Joseph At AutoMeter
Date published: 2018-05-29

I have a 1979 CJ5-304 converted with 1988 Chevy TBI. Will the 5291 work for the speed sensor input on the Chevy PCM and attach to my Jeep stock t-case and speedo cable?

Asked by: Stupid Jeep Conversion
Thank you so much for contacting us. While the 5291 would work great if you were driving an AutoMeter speedometer, it will not work with the factory equipment on your vehicle. The Chevy PCM really wants to see the Chevy speed signal, which was a sine wave (as opposed to the square wave output from our sender). Sorry for the bad news.
Answered by: Joseph At AutoMeter
Date published: 2018-05-14

Hi, I've got a autometer 5291 fitted to an early modified saab 900 to provide a seed signal to the ecu, it would appear that I need an out put of 4 pulses per revolution, can it be modified to provide 4 pulses per revolution?

Asked by: Shellfm1
Hi there, thank you for the question. Unfortunately, the 5291 cannot be changed from the 16 pulses. We have another style sender that is 8 pulses per rev, but 4 pulses seems very rare and unlikely available as an aftermarket sender option.
Answered by: Matt from AutoMeter
Date published: 2018-05-03

I have an 01 jeep wrangler that I installed a electric speedometer in. I took the np231 transfer case out and installed an 03 Rubicon np231 transfer case 4 to 1 gear ratio. Is there away to use the old speed sensor with the newer trans case

Asked by: Stewie
Hi Stewie, thank you for the question. If this is an AutoMeter electric speedometer, it should work off the VSS (vehicle speed sensor) on the later model transmission. The AutoMeter style sender 5291 will only work on an early model transmission with a cable output for the speedometer.
Answered by: Matt from AutoMeter
Date published: 2018-04-24

Hi I was wondering if this would work for a 1989 f150 with manual m5r2?

Asked by: Johnboy
Thank you for the question. Ford had begun using a VSS (vehicle speed sensor) as early as 1989, even though they had a cable to run the speedometer. If your F150 is equipped with a VSS, our electronic speedometer will work directly off your VSS. Otherwise, you will actually need the 5292 Ford Plug-In style sender to run our electronic speedometer: https://www.autometer.com/hall-effect-speedometer-sender-ford-plug-in.html In any situation, however, our sender is not designed as a direct replacement for an OEM sender. We would recommend sourcing this directly from Ford.
Answered by: Matt from AutoMeter
Date published: 2018-04-10

Hi my question is that I have the speedo and sender in my truck and I need to know how to test the sender my unit quit working and I believe it’s a problem with the sender not the gauge because my gauge will go into program mode and does it’s sweep

Asked by: Slonoma
Thank you so much for the question. There are a few things you can check out. First of all, we do have a video on our YouTube channel with instructions on testing a 3 wire speed sensor: https://www.youtube.com/watch?v=G1XzwZE6n8M Also, try testing the sender with a drill outside of the transmission to see if it will trigger the speedometer then. This could be caused by the drive key not engaging while the sender is installed. To fix this you can adjust the collar on the drive key so that it extends farther into the trans. Finally, be sure the sender's ground and speedometer's ground is shared. Ideally, we recommend both the sender and speedometer be grounded to the transmission. If you're unable to have success after these steps we recommend reaching out to our service team at 866.248.6356, hitting the Chat link at the top of the page or emailing us here: http://www.autometer.com/resources/index/ask_a_question
Answered by: Matt from AutoMeter
Date published: 2018-03-05
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