Year of Manufacture *: 1999
( Optional ) Engine Code or CC: 1.25 ZETEC
When vehicle is stationery, engine revs drop to 1,000 revs.
No fault codes. TP Sensor checked and is 0.94 volts at tick over.
Vehicle Speed Sensor is Cable driven to Speedo Head.
If Vehicle Speed Sensor is disconnected, engine revs are correct whilst driving - Speedometer still works.
I do not want to fit VSS and discover the problem remains. Are there any updates on ECU or other options possibly connected to this problem?
Is this particular Speed Sensor used only to keep engine revs up when slowing down?
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