83 1.9L Vanagon L No Start Issue

[billgjcook1982]

I'm in need of some knowledgeable Vanagon owners.

My wife and I recently bought a 83 1.9L Vanagon L. We have replaced the Alternator, starter, battery, hall module, ignition and switch, new power cable from battery to starter, replaced all the ground connectors (cleaned connections from tree to body under dash, fuel pump, transmission to chassis and chassis to engine head.) I've taken out the engine bay wiring harness and have ohm out every connector and replaced the ground connectors on that. I have everything working except the injectors, they function as I have taken them all out and tested and cleaned them. the issue is that I'm not getting the ground signal required for the injectors to fire. I've done all the test and diagnostics per the Bently manual. I've gotten the engine to run by grounding the center hall connector to the engine as it will fire the injectors and fuel pump, I can then go up and get the engine to fire up and run perfectly and it will keep running until I turn off the ignition and try to restart and the injectors no longer receive the ground signal. Tried a good ECU out of a running Vanagon and changed distributor.

Sorry for crazy book but hopefully I have covered all the bases.

[crazyvwvanman]

Open up the engine compartment wiring box, the one in the corner.
Inside there are 3 or 4 red wires attached to a threaded stud.
That is the main power junction for the engine in your year.
That stud should have power on it no matter the key position.
Keep measuring it while someone cranks the starter using the key.
The voltage should start off above 12v and not fall below 10v during cranking.
What do you see there?

Mark

[dobryan]

OP just so you know Mark is one of the most knowledgeable folks here on the electrical system of Vanagons. I'd put a lot of weight behind whatever he says.
_________________
Dave O
'87 Westy w/ 2002 Subaru EJ25 and Peloquin TBD

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