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VSS Pull up on 1995 NA
Diyautotune told me I needed to install a new sensor to add VSS to my car. After reading here, I see this is not true and that I just need to run a pull up. I have 2 questions: 1. To get my computer to read VSS and ultimately see what gear I’m in, I need to run a 5v power output with a 1k resistor to my 3I pin on my cars harness before the MS3PNP? Will this then automatically give me speed? 2. What other info can I get from my car by running pull ups? Sounds like there may be ofther info I’m missing out on like knock? How many pull ups can I run per 5v output? also, 4K for power, run a 1k resistor to 3I? Or to 1m? 3I was mentioned in a different thread but 1m looks like what I want per this pinout https://cimg1.ibsrv.net/gimg/www.mia...aa9bde043.jpeg https://cimg2.ibsrv.net/gimg/www.mia...8fdc934e1.jpeg https://cimg4.ibsrv.net/gimg/www.mia...1adb5afce.jpeg |
no pullup needed for VSS. On 94-95, VSS is on 1M. Just connect it to a digital input.
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Originally Posted by WestfieldMX5
(Post 1504165)
no pullup needed for VSS. On 94-95, VSS is on 1M. Just connect it to a digital input.
if no pull up is needed, why doesn’t 1m give a good signal for MS where it’s at? |
Got it done. Just wired 1m into digital requency 2 on my options port. It works!https://cimg4.ibsrv.net/gimg/www.mia...9d525895c.jpeg |
Which MS do you have? I have the MS3PNP pro, was supposed to work out of the box but I had to make some base map tweaks.
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I have the same computer. I used base map. Tuned it a little to spring pressure, then added an EBC and took it to a tuner for flex fuel blend |
Originally Posted by Wulfensteinster
(Post 1504190)
I have the same computer. I used base map. Tuned it a little to spring pressure, then added an EBC and took it to a tuner for flex fuel blend |
Originally Posted by Stealth97
(Post 1504343)
Interesting. I had to do absolutely no wiring mods.
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I have vehicle speed and odometer, and its accurate. I have not tried gear yet, I usually know what gear I'm in.
This is on my '95https://cimg4.ibsrv.net/gimg/www.mia...60e1bc060a.png |
Originally Posted by Stealth97
(Post 1504386)
I have vehicle speed and odometer, and its accurate. I have not tried gear yet, I usually know what gear I'm in.
This is on my '95 Digital frequency 2 is the options port. So I never tried this before rewiring. Well, I returned the 1m to its 1 plug and left the configurations set to digital frequency 2 and sure enough. It still works. No rewrite needed with this ecu. Thanks!! |
does this start cutting out at higher speed?
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Originally Posted by psyber_0ptix
(Post 1504443)
does this start cutting out at higher speed?
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Originally Posted by Wulfensteinster
(Post 1504423)
Digital frequency 2 is the options port. So I never tried this before rewiring. Well, I returned the 1m to its 1 plug and left the configurations set to digital frequency 2 and sure enough. It still works. No rewrite needed with this ecu. Thanks!! |
Originally Posted by Wulfensteinster
(Post 1504449)
0-100 is fine haven’t tried any faster |
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