ok. for the past month or two, i have been having problems with my 84 244. it is running the b23f, with the LH-jettronic 2 FI system. fuel pump and filter, while oled, still allow plenty of fuel through, (checked it at the end of the fuel bar). when it stalls out going down the road, it most often will not restart until i open the hood, and unplug the computer there, then plug it back in. but these intervals are getting closer and closer together. i need to stop treating the symptom and fixing the real problem, but i am not sure what to look for. plugs, wires and distributor are new or like new, as is the battery and several vacuum lines. starter cranks around, but engine will sputter for several tries before it actually starts (usually 5 or 6 tries before it sputters to life). it has also stalled out just idling. sounds like it is skipping a cylinder every once in a while, but not sure what is causing it. any ideas?

84 model ICU needs sleeves on pins 3 5 and 9 of the ICU. The connector had female sockets that were manufactured a bit too big to make a good connection. The more often the ICU is unplugged, the bigger those sockets get and make the problem worse. There was a service bulletin issued for this at some point. Have heard others say the sleeves are about $5 each from the dealer, but I cut one from an 88 and soldered it in place of the original. Have plenty of power, correct timing advance and no more loping idle. Hope this helps.
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Harold Thompson '84 245 Virgos

as for the sleeves, is there a good place to order them?

http://www.partsgeek.com/catalog/1984/volvo/245/engine_electrical/ignition_control_unit.html

http://www.redlinemotive.com/replacement/volvo/ignitioncontrolunit.asp

http://www.programainc.com/docs/641.pdf

http://www.autopartsway.com/autoparts2/index.cfm?fetch=part~ID=1983~Volvo~242%20Normal~241843

Found these sights through Google. The last one has the sleeves for $4.13 each. The PDF file has pictures. Hope this helps.
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Harold Thompson '84 245 Virgos

Next time it stalls try to unplug AMM. I guess "computer under the hood" you refer to is ignition control module.. ECU gotta be on the passenger side in your car, I would guess.. I have the similar symptoms and it starts when I unplug AMM but than run erratically. I wonder if unplugging and connecting back ignition control module does the same thing. I ordered a new one from e-bay (after-market $73)and posted a message here asking if anyone have experience with it... I will report my experience when i replace it..