06 MCS was hard starting for a week or two and fine there after now cranks and wants to start but won't. Confirmed spark at wires, need to pull plugs and check

Fuel pump seems to prime when key turned on, fuel pump fuse looks good
I need to test relay. If these all pan out I suppose a fuel pressure check is in order?

Check engine light is currently out but was throwing cylinder 3 misfire weeks ago when hard starting.

I am hoping someone has an iPad compatible shop tech manual they wouldn't mind sharing - and of course any advice would be truly appreciated

Thank you

 

I would definitely look at the plugs before going much farther.

I have a fuel pressure gauge I am willing to lend out - I'm in Maryland.

Any recent repairs or modifications?

 

No recent mods. Long story. Car sat a long time took on water (plugged sunroof drain) needed a wiring harness, once running again it had the over heating issue. We changed a thermostat and housing and still overheated under heavy load until I figured out the bleeding procedure. Than all was well till this issue.

Will check plugs next day or two and see if fuel is delivered when cranking

 

You can probably borrow a fuel pressure gauge from a local auto parts store. Or Harbor Freight Tools has them relatively cheap.