I have an XJR-S 6.0 08/1992 Vin ending ER184249 and looking to replace the distributor cap however the cap on my car has the vent (top and side Lucas stamped) and looking on the net these were designed to fit up to 1989 cars? Any info would be greatly appreciated
Yes the XJRS uses the earlier lucas cap, not the later magneti marelli one. The whole ignition system is a mix of different bits and then the Zytek ECU.