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Author Topic: Random firewall plug  (Read 2547 times)

Offline 81c1500

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Random firewall plug
« on: April 15, 2017, 01:19:25 pm »
I'm trying to figure out what this plug is for. I picked up this gmc c1500 for $200 and now I'm trying to go through everything and fix it up.
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Offline bd

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Re: Random firewall plug
« Reply #1 on: April 15, 2017, 01:42:45 pm »
Welcome to the site!

That's the electronic spark control (ESC) connector that runs to the ESC module behind the passenger side dash.  If a short harness and mating connector is missing from the distributor, the ESC has been eliminated and the pictured plug can be disregarded.
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Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)

Offline 81c1500

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Re: Random firewall plug
« Reply #2 on: April 15, 2017, 05:58:30 pm »
OK thanks. Yeah I noticed what appeared to be a computer under the dash on the passenger side. Truck was originally a 305 but someone swapped in a 350 which has the one wire distributor.
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