UK Car Repair Questions? Ask a Mechanic for Answers ASAP
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A reason for the link error is EOBD was not compulsory on diesels before 2004.
The protocols used by your scan tool therefore might not be complient.
You first need to find a compliant scan tool to get the code stored before diagnosing the fault.
Do you need further help with this?
have compliant tool now says 0335 when checked it says crank sensor circuit fault would this mean sensor it self is at fault
In most cases a new sensor will cure the fault but you have to check there is no fault with the wiring to the sensor first.