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airman240
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PostSubject: speedo doowwwnnn   Mon Oct 17, 2011 4:46 pm

Hey guys I've actually had this problem for a while just haven't cared much until now. I have a 91 s13 and i swapped in a SR20det. Ever since then my speedo is waaayy off. Just wondering if anyone had any wiring ideas or program you can buy or anything, lmk thanks!
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s13.240sx
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PostSubject: Re: speedo doowwwnnn   Mon Oct 17, 2011 5:40 pm

Is the speed sensor your KA one or the one that came with the SR? I believe that you need to use the one from your KA for it to work properly.
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mattchow88
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PostSubject: Re: speedo doowwwnnn   Mon Oct 17, 2011 7:13 pm

I have an extra trans if you need a sensor
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airman240
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PostSubject: Re: speedo doowwwnnn   Mon Oct 17, 2011 7:34 pm

Ahh i didnt think of that cuz i sold my trans to a friend actually. And yea if you'd be able to just give me the sensor?....or are you looking to get rid of the trans too?
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chuck_chizzle
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PostSubject: Re: speedo doowwwnnn   Mon Oct 17, 2011 10:13 pm

speed sensor is the same.
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airman240
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PostSubject: Re: speedo doowwwnnn   Tue Oct 18, 2011 3:32 pm

Sooo either sensor wouldnt workout i take it?...any ideas?
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chuck_chizzle
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PostSubject: Re: speedo doowwwnnn   Tue Oct 18, 2011 4:35 pm

ka and sr sensor are the same.....as long as they are both s13
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93sapphirecoupe
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PostSubject: Re: speedo doowwwnnn   Wed Oct 19, 2011 12:11 pm

did you change your rear end gear by chance?
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thefreack
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PostSubject: Re: speedo doowwwnnn   Wed Oct 19, 2011 1:26 pm

Did you put bigger wheels on it? That is why my speedo is off
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airman240
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PostSubject: Re: speedo doowwwnnn   Wed Oct 19, 2011 3:46 pm

No its stock wheels and everything, cuz i know that usually throws it off. Thats why im confused i guess cuz i never heard doing this swap would change the speedo so dramatically
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s13.240sx
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PostSubject: Re: speedo doowwwnnn   Thu Oct 20, 2011 7:54 am

I have all stock everything on my car also. According to my GPS at 30 i am about 3 mph slower and at 70 i am slmost 6 0r 7 mph hour slower(obviously gearing being a ratio it acts as a multiplier and varies with your speed). How far off is yours? Mine has been this way since I picked the car up over 4 years ago. I have just adjusted to it.
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ohhhizzzy
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PostSubject: Re: speedo doowwwnnn   Thu Oct 20, 2011 1:52 pm

You need your ka sensor to work with the speedo. The sr one will not work right.
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airman240
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PostSubject: Re: speedo doowwwnnn   Thu Oct 20, 2011 3:56 pm

kk so just snag my ka sensor off and use that n problems solved? but its way off, ill be going about 50-60 and it says approx 30. Its bigtime off
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thefreack
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PostSubject: Re: speedo doowwwnnn   Thu Oct 20, 2011 6:00 pm

the speedo i think is based off of the current that the sensor is sending it. so if you check out the specs of the sr sensor and the ka sensor that would probably tell you the difference. and changing it back to the ka sensor will probably get you closer but i am willing to bet that there is a difference between the gears of the trans so that may not be perfect. another option is get an sr panel.
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ohhhizzzy
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PostSubject: Re: speedo doowwwnnn   Thu Oct 20, 2011 7:41 pm

Sr an ka trans gears are wayyyyy different. Sr=2.0L Ka=2.4L. Different rpm at different speeds. So u do need a ka speed sensor to work ur speedometer.
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93sapphirecoupe
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PostSubject: Re: speedo doowwwnnn   Thu Oct 20, 2011 8:02 pm

the gearing isnt THAT much different.
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airman240
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PostSubject: Re: speedo doowwwnnn   Thu Oct 20, 2011 8:43 pm

kk ill take a look into it when i get a chance, i got all winter anyways so just tryin to get some pointers, thanks
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