78 bus l-jetronic harness question

Jul 07, 2007 3 Replies

got a 78 baywindow that finally got its motor put back in; having a head- scratcher of a time remembering where a few of the wires went.



it wants to start, but won't idle.



the wires currently perplexing me are the white ones near the cold start valve (one pair going to a single female spade, and then another single female spade)



any suggestions? one of them is for the oil sensor i think? that's the doo-hickey under the rubber grommet near the cold start valve, right?



No oil sensor. There is a temp sensor in the left side head though. It's single wire does come out thru a grommet. That goes into a plastic splice and thence to the FI harness.

There are 2 Ground connections (3 wires) which come out of the harness together.

The last single spade is the long one that goes to the Coil (-) terminal.

I'll try to answer any other questions (e-mail works too). Also browse:

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Click on Library Click on "F" for Fuel Injection

Speedy Jim

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Speedy Jim wrote in news:b4Wji.25669$ snipped-for-privacy@newssvr23.news.prodigy.net:

Hi Jim, thanks for the response.

It's not the temp sensor wire I'm talking about, that one's hooked up. I've got two white wires that go to a single spade, and another white wire that goes to it's own spade. All are dangling currently. Also, nothing is hooked up to the oil pressure sensor (the sensor sticking out through the tin between the dizzy and the cold start), but I think that just drives a dash light anyway.

Is there a pin out of the ECU connector anywhere?? That would help immensly!

kind regards--

-Matt

Pinout in your Bentley. Pins #5,16,17 are Ground. That accounts for the 3 dangles. They go to spades on the engine case, near the alternator.

The OIL sensor is not part of the ECU harness; it gets a Blu/Grn from the Main harness.

There is a simplified schematic of the FI on this page of my web site:

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those Ground pins are not shown specifically. Speedy Jim
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