Engine wiring harness plug under the dash covered in foam?

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mkory
Posts: 2321
Joined: Sun Jul 11, 2004 7:25 am
Car: Mazdaspeed Miata

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I can't find for the life of me what this connects to. There is a plug attached to the upper engine control harness that's under the dash. It's one of 4 plugs, the other 3 (ECU, relay, dash harness? - the one with a triangular lock) are plugged in, and the car runs okay, but not great. The last plug (the foam wrapped one) is unplugged, and I can't find what it goes to for anything!


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mkory
Posts: 2321
Joined: Sun Jul 11, 2004 7:25 am
Car: Mazdaspeed Miata

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Bump...

RoyalFortune
Posts: 20
Joined: Wed May 27, 2009 12:36 am
Car: 1990 Nissan 240SX

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Hey did you ever figure out what this plug is for ??

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chaosli
Posts: 723
Joined: Sat Feb 23, 2008 9:22 am
Car: 89 nissan 240sx coupe FTW
99 mazda miata
93 bmw 325i RIP

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are you getting signal to you gauges like rpm, engine temp and gas lever if you dont thats the plug you have

or maybe it the little one in the back near where the harness enters the car

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zerepdivad
Posts: 2010
Joined: Thu Nov 24, 2005 5:39 pm
Car: '90 240sx . '02 Lexus IS300
Location: WI

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diagnostic port maybe?


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