You speak for me too, Art.

I'm glad to hear that Charles's project car runs, thanks to his "local Volvo Guru". But it's frustrating to see that the Guru's tip deals with basics that you, I, and others have been repeatedly explaining for a year or more.

I don't know when your cited Fuel relay operation help was offered, but I laboriously plowed the same ground almost a year ago, in my edited post (one of many) below:

====from May 2008========>
Before you start swapping in pumps, you need to check out what controls them, starting with the 2 relays associated with the FI system.

• The "System" relay [Red wire to 30 and bridged to 86, two output wires from 87, Brown and Orange] should "pick" and stay picked as long as the key is on. If this doesn't happen, suspect the 25 Amp blade fuse uner the hood, or fuse 12 or 13 (Blue/Red output wires).

• The "Fuel" relay doesn't "pick" until the ECU completes its coil ground side, which happens when the ECU senses Ignition pulses from the Coil negative terminal #1 (Red/White wire). This assumes that all of the following are good:

a) The System relay is OK and powered the ECU (Brown wire to ECU #9)
b) The Fuel relay coil power is good from fuse 12 or 13 (Blue/Red wires), which also powers ECU #18.
c) The Fuel relay coil (Blue/Green wire) gets grounded from ECU #17 when ignition pulses are detected as mentioned above.
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Maybe be too much information?

[BnL = Bare Naked Ladies?]
--
Bruce Young, '93 940-NA (current), 240s (one V8), 140s, 122s, since '63.