PDA

View Full Version : Speedo off since SR swap (not speed sensor)


Negreac
03-23-2004, 06:23 PM
Evere since I swapped out my engine my speedometer has been off by quite a bit. It was always off a little but now it's telling me I'm going 90 when I'm actually going about 80. However, down near 45 it's pretty accurate. My tire size and rims are stock. Any ideas what it could be? Anyone else have the same problem?

Junked240
03-23-2004, 06:37 PM
No, if your speed sensor is fine, just have your speedo adjusted! Problem solved!

drift freaq
03-23-2004, 08:28 PM
Evere since I swapped out my engine my speedometer has been off by quite a bit. It was always off a little but now it's telling me I'm going 90 when I'm actually going about 80. However, down near 45 it's pretty accurate. My tire size and rims are stock. Any ideas what it could be? Anyone else have the same problem?


we need a little more info to answer your question . i.e. what year car is yours? did you put in a redtop or a blacktop? or a S14 SR? who did the wiring? all these are important factors. I have seen where 89-90 gauge clusters have not worked correctly with a SR swap, quite often in those cases people throw the JDM gauge cluster in and it works. technically your speed sensor should be working fine but if your engine is from a much later model year it could explain why its off. for instance a 95 s14sr speed sensor while it can be wired up to the s13 gauge cluster will not read out right at the speedometer. s13 speedo sensors are supposed to be all universally the same . some people who do sr swaps pull the american speedo sensor out of the ka 5 speed and install it in the sr trans to be on the safe side but I have seen people run the sr speed sensor with the american gauge cluster with no problems. all the speed sensor does is spit out the info . its up to the gauge cluster whether it will read out in mph or kph. If you have ever seen a car with HUD (heads up display) it can be switched between mph or kph with the twist of a knob right on the gauge cluster thus proving the fact that the speed sensor does not determine the mph or kph readout.
hopefully this little diatribe will shed some light on your issue.

Negreac
03-26-2004, 05:14 PM
It's a 92 240 HB with a 93 redtop

mistaanime
03-26-2004, 10:41 PM
get a another cluster gauge...like the digital one..those are always nice..

DRFT
03-27-2004, 12:10 AM
get a another cluster gauge...like the digital one..those are always nice..
who said???

mistaanime
03-27-2004, 12:28 AM
wtf r you talkin bout...i said...

drift freaq
03-27-2004, 12:52 AM
It's a 92 240 HB with a 93 redtop
hmm you should be having no speedo problems. the speed sensors are the same vintage so the gauge cluster should read write . Did you by any chance rewire your speed sensor? if you gott the wires switched around it might cause your problem. Its pretty easy to cut the two wires and resplice them to test this theory.
The other thing is to throw in the gauge cluster that came with the clip and see if it is working properly.
Oh and yes speed sensors can get damaged and stop working properly . Just trying to think of every possible thing that could cause your problem.

Negreac
04-12-2004, 11:04 AM
I didn't get a cluster with my clip and I didn't rewire the speed sensor. I found my old speed sensor in my basement the other day, I'll try swapping it back in when I get a chance and seeing if it makes a difference.