On my 94 +8 I had the issue of the engine stalling when the vehicle came to a stop, fault code 48 showed on the ECU LED readout which is mainly the Stepper Motor sticking or incorrect base idle speed adjustment and possible throttle butterfly adjustment. After replacing Stepper Motor the problem persisted, I also checked the butterfly adjustment and in the end established it was a poor earth on the road speed sensor. Rough running can be attributed to fuel or ignition issues, do you know what code is being shown?

These links might be useful:

http://www.britishv8.org/Articles/Rover-14CUX-EFI.htm

http://www.v8wizard.com/Setting_Air_Mass_Flow_Meter_and_Throttle_Pot.php

https://www.actproducts.co.uk/2011/lucas-14cux-fuel-injection-system-%e2%80%93-installation-and-diagnostic-notes/


Last edited by britmog; 28/11/20 08:59 PM.
Bruce
1964 4/4 Series V Comp (Megan)
1994 +8 (Maurice) tis no more
2013 M3W (Olga)