Problem with ETM DIM or NAVI??? Cheap services here

[Vetvolvo]

Hi All. It has taken a while but finally found a recent thread which may be relevant. Hope someone can help.

Bought a 2001 V70 2.4 petrol automatic for £900 a year ago 125k on the clock. Love it.

Changed ABS modulation unit.. all good. Then starter started sticking. So changed for breakers part about 4 weeks ago with the help of a mechanically minded friend.

Ever since then all sorts of problems. Basically will not start well when warm. Also hunting for revs at idle. Both problems seem intermittent. My friend has a diagnostics gizmo. Initially said crankshaft position sensor. Changed for genuine Volvo part. Problem still there. But also then temperature gauge stopped working. Replaced thermostat. Temp gauge working, still wont start warm.

Took to independent garage. ECT sensor fault. Replaced still won't start warm.

Took to Volvo. Said could not replicate the fault. Said could be MAF sensor, or camshaft position sensor. Found breakers CAM sensor, fitted problem persists.

Now doing research wondering if this could be the ETM due to the hunting but does it explain the non start from warm??

Any suggestions gratefully received as this is driving me nuts and my wife refusing to drive it in case it completely fails to start if she takes it somewhere.