XJS ( X27 ) 1975 - 1996 3.6 4.0 5.3 6.0

XJS V12 1994 code FF 77

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Old Oct 11, 2019 | 11:31 AM
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JagDE45's Avatar
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Default XJS V12 1994 code FF 77

I have read various posts but still dont know if there is a solution to getting this fixed or at least getting the light off on dash. I know to disconnect battery and code disappears for awhile but soon returns. It's time for me to sell this gem after having her since new
Can someone help in solving.
 
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Old Oct 11, 2019 | 04:09 PM
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JagDE45,

It's thrown if the car temporarily can't see a speed signal by the fuelling circuitry. See diagnostic flowchart below:



Good luck

Paul
 
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