Your call, but I would next check the sheath and wire condition of the CPS and the underhood 25 amp fuse and fuseholder as previously suggested. If either one is bad, it can cause intermittent starting and intermittent stalling. BTDT with the 25 amp fuse on my 1990 240 DL. A visual check on these is pretty easy and could save you both time and money.
From my earlier post:
" Since it is an intermittent problem I suggest also checking the underhood 25 amp blade fuse for the fuel injection/ignition. I had an intermittent starting problem with my 90 240 years ago. After struggling mightily to find it, I finally discovered it was a corroded fuse holder for the 25 amp fuse. Replaced the fuseholder, the 25 amp fuse and cleaned up the wiring. No more problems, good to go...:) "
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