I've been slowly resurrecting a 1999 C70 T5, 2.3. The repair to the ABS module took care of some but not all my codes. Current codes are:

P0237 Boost Sensor A circuit Low
P0014 Exhaust Camshaft Ignition timing advanced
P0236 Boost Sensor A circuit Range/Performance, and
P0300 Random misfire

Also - the engine light is on steady, but blinks upon moderate acceleration.
Car doesn't like to start once warm

Otherwise car performs decently once running, before and after all repairs.

Replaced original plugs, timing belt, filters, etc. - no change.

I've replaced the Turbo Control Valve - no change.


Could the crank sensor be part of the issue?