Following on from this topic: Compression down in cyl. 3
EVAP system has been fixed and everything else sorted but, the engine is still suffering a bit with the shakes. The compression is still the same averaging out as 9bar per cylinder across the block. No misfires detected or jumpy idle either.
What to look at next in the engine bay is the question...
- Engine mounts look okay or does this mean absolutely nothing? If you lean on the engine when it's revving under 2500rpm it does go away. It's not that noticeable between 2500 and 3100rpm. It stops shaking around 3200rpm and above. Gearbox mount is a year old but the rest are original.
- The exhaust has been checked for leaks but there's nothing coming out or going in where it shouldn't be but they have found a pending cat error code which they weren't getting before the evap valve was changed. Will have to get an emissions test next to see if it's out of range as no cat rattle or smells. All lambda sensors are new and working as expected when you create a vacuum leak.
The code I got a couple of times was p0420 and they had p1680x.
Are we getting somewhere with this?