Speed sensor
12-27-2008, 03:26 PM
Post: #1
Speed sensor
Can anyone tell me what the effect of running the car without the speedo cable attached to the gearbox would be ?
Diagnostic test brings up a code 9 fault "speed sensor" which is not surprising as the speedo cable does not fit the Ford gearbox I have fitted !

An analogue brain in a digital World
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12-28-2008, 12:24 AM
Post: #2
Speed sensor
There is a reed switch in the speedo that outputs a pulse to the ECU.
AFAIK it is only used to activate a speed cut on some models. If the
signal is missing it throws a fault. For what its worth, I ran my car with
the speedo cable disconnected a couple of times, and didn't notice any
change in performance, and don't remember getting a CEL.

Cheers... jondee86
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12-28-2008, 10:43 PM
Post: #3
Speed sensor
Mux drove his car with a broken speedo cable for some time... Can't remember him getting faultcodes either.

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2013 - Honda Civic sport - daily driver
2004 - AEU86 dot ORG - daily domain

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