Well, I've given up on the CPS
I got the Torx on the screwbut it was too tight. I managed to slacken the exhaust. But the Hirsch exhaust wont come off completely without a bit more work. The flange is unbolted but I can't move the exhaust clear of the studs on the turbo. The sports cat hits the gearbox. Ideally I would remove the studs, but the bottom one is pretty inaccessible The studs have a small Torx end but I don't have any tools that small. To add to this, not only were the top screws on the exhaust flange finger tight, the bottom one was cross threaded...
There was enough slack for me to get the spanner on the CPS better, but the screw won't move. I had about a 12 inch lever on it, but no go. If it breaks, the car will be stuck on the drive
I carried on chasing the fuel smell which started last year after I had changed the non-return valve in the EVAP pipe. It went to Joe to have a look and he found that the valve I fitted wasn't sealing properly, he fitted a proper Saab valve, but the smell still lingered. Today I thought that I would check the EVAP pipe for leaks, the first thing was to blow through the pipe. At which point I found that the Saab valve works in the reverse direction to the flow arrow. Very confusing - and wrong.
I'll have a chat with Joe on Monday and arrange to sort it all out.