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| Intermittant speedo https://forums.tipec.net/viewtopic.php?f=25&t=11800 |
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| Author: | nickm85 [ Mon Oct 17, 2011 10:05 pm ] |
| Post subject: | Intermittant speedo |
my 944 S2 speedo stops and starts intermittently at different speeds. Is it replacement speedo time? Or is this a simple fix? Thanks, |
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| Author: | doctor924 [ Tue Oct 18, 2011 7:03 am ] |
| Post subject: | Re: Intermittant speedo |
I have the same problem but as my mpg meter also has the same problem - I think its probably the speed sender rather than an instrument problem per se. Haven't had a chance to look yet - anyone know where the sender/transducer is? |
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| Author: | Mike968 [ Tue Oct 18, 2011 7:06 am ] |
| Post subject: | Re: Intermittant speedo |
Doesn't the speedo signal come from one (or more...?) of the ABS sensors on an S2...? |
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| Author: | Richy_S [ Tue Oct 18, 2011 8:13 am ] |
| Post subject: | Re: Intermittant speedo |
Mike968 wrote: Doesn't the speedo signal come from one (or more...?) of the ABS sensors on an S2...? Sender unit on the g'box I believe. |
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| Author: | rapidstu [ Tue Oct 18, 2011 5:02 pm ] |
| Post subject: | Re: Intermittant speedo |
I had this problem on my S2 when i bought it 5 years ago. it was the sender on the gearbox. it was a simple and suprisingly cheap fix. |
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| Author: | nickm85 [ Tue Oct 18, 2011 5:15 pm ] |
| Post subject: | Re: Intermittant speedo |
rapidstu wrote: I had this problem on my S2 when i bought it 5 years ago. it was the sender on the gearbox. it was a simple and suprisingly cheap fix. Cant get much better than that! Thanks! |
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| Author: | nickm85 [ Sat Oct 22, 2011 8:11 pm ] |
| Post subject: | Re: Intermittant speedo |
replaced the sensor today and now working perfectly! thanks |
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| Author: | nickm85 [ Sun Oct 23, 2011 9:40 pm ] |
| Post subject: | Re: Intermittant speedo |
ok, well not quite perfectly. 30mph on the dial is more like 36/37 ?! |
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| Author: | Althejazzman [ Thu Nov 03, 2011 9:17 am ] |
| Post subject: | Re: Intermittant speedo |
Most manufacturers normally over-estimate, but you say yours is reporting slower than your actual speed? |
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| Author: | nickm85 [ Thu Nov 03, 2011 9:23 am ] |
| Post subject: | Re: Intermittant speedo |
yes, 30mph on the clocks is more like 40mph. I was thinking of just removing the perspex and twisting the needle backwards by the right amount. Seems more like a bodge than a fix though. |
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| Author: | Althejazzman [ Thu Nov 03, 2011 10:24 am ] |
| Post subject: | Re: Intermittant speedo |
You might find it's a non-linear fault, so you'd only be making it accurate for 30mph. In other words, it could be out by a percentage, not by a fixed speed. So your sensor might be putting out too much voltage for the speedo, or perhaps the speedo is also worn out, and responding weakly. |
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