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Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » VSS Fault code - No speed signal or low voltage


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Author VSS Fault code - No speed signal or low voltage
Gregor
Member
Registered: 28th Nov 03
Location: Paisley, Renfrewshire
User status: Offline
13th Sep 06 at 20:12   View User's Profile U2U Member Reply With Quote
Can this cause the car to run poorly at all ?

My speedo cable is definetly working as I have seen the bit inside the connector moving whilst driving.

So could it be the clocks ?

These were fine 5 weeks ago in my old engine !
Corsa E-Tec
Member
Registered: 4th Feb 04
Location: Stevenage Drives: Leon Cupra
User status: Offline
13th Sep 06 at 21:17   View User's Profile U2U Member Reply With Quote
sure the casing on it has not snapped, mine did this.
csweatherston
Member
Registered: 16th Jan 06
Location: Devon
User status: Offline
13th Sep 06 at 23:27   View User's Profile U2U Member Reply With Quote
speed sensor.....engine rpm.(not road speed)
either crank or cam sensor
Gregor
Member
Registered: 28th Nov 03
Location: Paisley, Renfrewshire
User status: Offline
14th Sep 06 at 10:25   View User's Profile U2U Member Reply With Quote
The casing on what E-Tec ?
Dave A
USER UNDER INVESTIGATION - DO NOT TRADE

Registered: 10th Dec 03
Location: County Durham
User status: Offline
14th Sep 06 at 10:38   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by csweatherston
speed sensor.....engine rpm.(not road speed)
either crank or cam sensor


you are guessing again....... it has fcuk all to do with the cam or crank sensor
Dave A
USER UNDER INVESTIGATION - DO NOT TRADE

Registered: 10th Dec 03
Location: County Durham
User status: Offline
14th Sep 06 at 10:42   View User's Profile U2U Member Reply With Quote
it will cause it to cut out as the cars ecu tells the icv (idle control valve) when to open and close when you dip the clutch when you pull up at a junction etc (let the revs die basicly). the ecu uses a signal that is sent by the vss (vehicle speed senser) to determine vehicle speed vs engine speed to tell the icv how far and how long to open for. the vss generates its signal in the back of the clocks. its driven via the speedo cable. no vss= no signal to the icv= no air on idle= car cuts out
Gregor
Member
Registered: 28th Nov 03
Location: Paisley, Renfrewshire
User status: Offline
14th Sep 06 at 10:50   View User's Profile U2U Member Reply With Quote
So the vss is infact inside the clocks ?
RobHayes
Member
Registered: 6th Sep 03
Location: Lincolnshire
User status: Offline
14th Sep 06 at 10:52   View User's Profile U2U Member Reply With Quote
does your speedo work now?
Gregor
Member
Registered: 28th Nov 03
Location: Paisley, Renfrewshire
User status: Offline
14th Sep 06 at 10:52   View User's Profile U2U Member Reply With Quote
Not at all
Dave A
USER UNDER INVESTIGATION - DO NOT TRADE

Registered: 10th Dec 03
Location: County Durham
User status: Offline
14th Sep 06 at 10:54   View User's Profile U2U Member Reply With Quote
its got to be the cable / sender or clocks then. without the clocks working the vss wont give the ecu a speed signal
Gregor
Member
Registered: 28th Nov 03
Location: Paisley, Renfrewshire
User status: Offline
14th Sep 06 at 11:01   View User's Profile U2U Member Reply With Quote
must be the clocks then because i can see the cable moving whilst driving the car

 
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