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Engine electrical hook-up pictures.....


mally002

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Hey guys,

Does anyone have photos of the different wires and where they connect for a series 1 240z in regards to the engine bay only. I am taking the rest of the week off to work on the Z and have no idea or schematics on where to begin the hook-ups.

Basically just the wires on the passenger side as the entire harness comes out of the firewall, some are pretty obvious but others I have no clue. Also it has electronic ignition so if you have any advice on this connection please let me know.

Here's a few pictures I took today, I should have taken photos of the wires but forgot. Thanks for any assistance, and with any luck can get her started on Friday.

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Hey guys,

Does anyone have photos of the different wires and where they connect for a series 1 240z in regards to the engine bay only. I am taking the rest of the week off to work on the Z and have no idea or schematics on where to begin the hook-ups.

Basically just the wires on the passenger side as the entire harness comes out of the firewall, some are pretty obvious but others I have no clue. Also it has electronic ignition so if you have any advice on this connection please let me know.

Here's a few pictures I took today, I should have taken photos of the wires but forgot. Thanks for any assistance, and with any luck can get her started on Friday.

Do you have a factory service manual? You can find one online at the link in my signature.

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Hi Randy. First of all, let me say...stunning!!! Really, just stunning!

Okay, on the passenger side, one branch of the harness goes up the firewall. First picture is a 5 wire male plastic connector (Blue, Blue w/Yellow, Blue w/White, Black and Yellow w/Red), and it plugs into the female connector for the windshield wipers.

The next tributary (Black male spade and Black w/Yellow female spade) of that harness grouping continues on across the firewall to the driver's side and plugs into the windshield washer.

The last wire in that grouping (Yellow w/Green Female bullet) is the brake fluid warning light and connects to the male bullet atop the brake warning light switch on the inner fender just below your master cylinder.

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Now, heading the other direction:

Photo 1 - Starter connections - The large White w/ Red Male Spade connects to the Starter Solenoid. The Black female spade goes to the tang on the solenoid.

Photo 2 - The next grouping has a Yellow w/black female bullet that goes to the oil pressure sending unit, a plastic male "T" 2 wire connector (Yellow and White w/Black) that goes to your alternator, a ring connector (Black) to post 'E' on the alternator, and the larger gauge White w/Red I believe goes to post 'A' if you're running a stock 240Z alternator, or to post 'B' if you're doing the 280ZX upgrade. (Note: Photo is of the 280ZX alternator)

Photo 3 - There is a 6 pin connector that goes to your voltage regulator (the photo shows the connector with the adapter plug for the 280ZX alt. upgrade in place, but this is the connector that would go to the voltage regulator in a stock configured car). Visible in this photo is a single female bullet (Blue) that plugs into the capacitor mounted on the fender with one of the voltage reg. mounting screws.

Next wire (not shown), which will be just before the harness passes through the radiator surround, is a sheathed Red female connector that connects to the trouble lamp.

After that, you're on to lights and horns at the front of the car. I'm running Dave's harness upgrade so I didn't take any pictures of this area, but I believe the connectors are all specific to their respective counterparts.

Good luck, and again, it's looking fantastic.

Gary S.

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Edited by 7T1240
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