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Time for another thread? 200 1984

[ Note that I marked this as "1984" because you've said you rewired the FI and Ignition to LH 2.0 with Volvo Chrysler ignition.]

1) It's time to start a new thread.

2) Before you start swapping in pumps, you need to check out what controls them, starting with the 2 relays associated with the FI system.

I don't know the relays' exact (inside firewall) location on your conversion, but do know how they (should) work. They are both the same Bosch metal-case "cube" relays (others would work, but again, I'm assuming you scavenged the stock OE types).

• 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.

I think that's enough for a "start".



--
Bruce Young
'93 940-NA (current), 240s (one V8), 140s, 122s, since '63.






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