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08-29-2004, 05:48 PM
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#1 |
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Registered User
Join Date: Jul 2003
Location: Lancaster, TX
Posts: 291
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Coil Wire
Hey guys I have a 1987 Chevy with a 350 TBI and I was looking under the hood today and noticed that on the coil there are two plugs with two wires coming from each plug. The plug closest to the driver side had a yellow wire that I cannot find what it plugs into. Is it just used for diags or is it supposed to be plugged into something. I have attached a pic taken from my Sprint phone because I haven't purchased a digital camera. Hopefully in the next week or two I will have one. Please help. Thanks !!!
Last edited by twoodson; 08-29-2004 at 05:52 PM. Reason: need to add pic |
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08-29-2004, 06:10 PM
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#2 |
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Registered User
Join Date: Sep 2003
Location: The Netherlands
Posts: 994
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It looks like the HEI bypass but it's hard to see from the blurry pic. If it IS the hei bypass then you are running at base timing all the time, EST will not be working. What you can do is check the timing, rev some and see if it changes. If it's rock steady you need to find the other half of the HEI bypass.
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