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"I do not hear the 1 second primimg sound that I think should occur when I turn the Key to position II."
• This is normal. The LH 2.2 doesn't run the pumps till an "Ignition OK" signal is detected during cranking.
"My other question is does this jump at between 4 and 6 power both pumps?"
• Yes. The input to fuse 4 (left side) is where the Fuel relay voltage is applied. At that point, voltage goes thru fuse 4 to the tank pump — and also directly to the Main pump.
If you remove fuse 4, and apply voltage to the hot (left) contact, only the Main pump will run. Conversely, voltage to the right side contact (fuse 4 removed) will run just the tank pump. Insert your meter between 6 and 4 left (fuse 4 removed) to read Main pump amps.
Despite what the fuse label says, Fuse 6 has nothing to do with any pump on US cars. It is for the K-jetronic FI system still used in other markets. In the applications above, fuse 6 is just a convenient voltage source. The hot (left) side of any fuse 6 thru 10 would work as well. (These five fuses are always hot with Key off - or Key in your pocket.)
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Bruce Young
'93 940-NA (current) — 240s (one V8) — 140s — 122s — since '63.
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