Hey so, my 94 xj12 appears to be running fine: but the check engine light is on with "fuel fail 67" and I don't know what that means exactly or what I should be doing to fix it. Also it used to make a "bleep-bloop bleep-bloop" sound when I hit the unlock/lock button on the key fob. Now it makes a single beep when I lock it and a triple beep when it unlocks.

On a side note, I heard a guy either turbo'd or supercharged his xj12, i've looked for stuff to do this with but haven't found anything that looks like it would work, has anyone on here done it and with what kind of results?

and on a completely different topic, my radio quit working or rather it kind of works when it wants to and the screen doesn't work at all, so i wanted to switch it out, the only classy looking head unit i've seen that works with the interior aesthetics is the mcintosh one, are there any others that work that don't cost like 2k? :/

 

Here is some info on the DTC diagnostics

bob gauff

 

Thanks for the PDF! I was also having this code issue after clearing a FF14. My mechanic suggested that if it continues after resetting, to trace the lines to the air injection pump (forward B bank) and see if there were any damaged spots.

I had installed a twin turbo set-up on a 1985 XJS that I was building for the AKA Rally a few years back. Ultimately the biggest issue was space. In the end we ended up cutting out pretty much everything behind the fenders and constructing a tube frame to allow for the custom tubing and turbo clearance. It appeared to be working well but unfortunately we were never able to really test it out as the car was crushed by a tree in my driveway before we got it truly road worthy........