I can hunt this connector down in a ZR-1 blindfolded with boxing gloves on, but can not see it period in this 85. Any details on a location?

Or is this where the test is done on the ALDL?

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I don't know the early cars have one. Never found one on my '87 but my '89 and '90 have them

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Put 12V to G on the ALDL
[IMG]http://i171.photobucket.com/albums/u309/vetteoz/aldl.gif[/IMG]

Yea, the ZR-1's come right off the main harness. I tried the G terminal on the ALDL and yep, it's a dead fuel pump.

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For the record, my early 85 has it. And depending on how Jeff is testing it, it might not be a pump issue, but it's probably due for replacement anyways.

That aldl pin on the '85 is fed by the normally closed side of the relay. When the relay has power, the aldl pin does not. So the only time the pin would have 12V is if the oil pressure switch is closed AND the relay is not energized. That pin's basic purpose is to power the fuel pump manually if the car is not running.

If that 85 has the 4+3 you can swap the fuel pump relay plug on the firewall (between the distributor and brake booster) with the overdrive relay in front of it in about 10 seconds to check on that. Obviously though even if the relay was bad, the pump should still come on eventually with oil pressure.

If you do the pump you will probably have to replace the rubber fuel and vent hoses above the tank also, and the spring clamps tend to turn to rust too.

The best way to check what voltage the fuel pump is actually getting is at the fuseblock. This is downstream of all the other circuits.