Like the title says, after about 2 years of going thru the wiring, cleaning, some new pa did right, fiddle with this, and with that, did checks with the AAV, the overrun valves and they checked out, tried my spare ECU, but keep running at about 1100 rpm, hooked up the other ECU left the vacuum hose off and rpms dropped, (the vacuum hose to the ECU rts, some cleaned. Got The XJS running proper to satisfy me. Did have troubles getting the RPMs set for a bit, but got them at least a steady 850, not really sure what the hell I. So next thing, get it down to the shop I take it and have the rear brakes and shocks done, while it's in the shop put on the new hood insulator. then hood back on, wash and polish and get it ready for a couple of local cars shows

 

Well done.

Time means diddly squat when dealing with a V12.

 

Thats for sure, especially when you want our older XJS to run proper