5 speed swap speedo problem

[johny1111]

I just got the 5 speed transmission installed and now my speedo seems to be showing double the speed. What can I do to fix it?thanks

[johny1111]

come on guys, someone must have an answer

i searched quite a bit and i couldnt find info i'm looking for

[PhopsonNY]

Maybe the new transmission had a bad speed sensor?

Maybe you can test the sensor output.

I cannot remember the voltage range, but maybe check your FSM.

good luck

[johny1111]

So u're sure that this shouldnt happen when doing auto->manual swap?

[johny1111]

I guess I should have mentioned that I used S13 transmission for the swap into an S14.

I read that the speed sensor is causing this problem. Is this the case? SHould i invesnt in one?thanks

[Nismo_Dj]

not to hijack ur thread but i just got my 5 speed swap as well and my engine light is on, is urs on as well?

[bps71]

just had mine done and if it hit 65 it shut off thinking it was doin near 120.. had to have wire cut to it now no speedo.... have 5spd speedo on the way... will tell you if it helps

[johny1111]

bps71, do u have s14 with s13 manual transmission?

nismo, yes i have bunch of codes

0802 - crank pos sensor 0804 - A/T diag line 1203 - overrun clutch solenoid valve (A/T control unit detects improper voltage) 1204 - T/C clutch solenoid (A/T control unit detects improper voltage) 1205 - line pressure solenoid valve (A/T control unit detects improper voltage)

Is there a way to fix all the A/T codes without getting a manual ecu? Or is it just best to get manual ecu?

Also, how do i get rid of the crank pos sensor code?

[popogto]

i think its the speed sensor issue. i have a s14 transmission in my s13 and the speedo is showing half. didnt want to mess with the speedo gears so i just got the apex RSM

[PhopsonNY]

I guess I should have mentioned that I used S13 transmission for the swap into an S14.

I read that the speed sensor is causing this problem. Is this the case? SHould i invesnt in one?thanks

I am pretty sure the s14 and s13 speed sensors give off different signals.You will have to do a search to confirm this.

[Niclas_AB]

I guy told me he had solved this problem by installing an resistor(hope thats the correct name) at about 1000ohm , never tried it myself tho.

[bps71]

yes Jony1111 i do .... howd u guess

[PhopsonNY]

this link might help

zerothread?id=168894