C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Timing info needed

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Old Jun 25, 2018 | 12:07 AM
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Default Timing info needed

I researched this via google. In all the info there it gave some initials for something to disconnect from the distributor. I don't know what they stood for.... I also read on another post to disconnect the tan with black stripe wire before adjusting the timing... It stated that this wire ran under the ws wiper motor by the brake booster. I found one with a quick disconnect that went to a relay mounter on the firewall by the Booster... kind of under the ws wiper motor.... Is that it... I know you'll think I'm nuts but back in the old days all we had to do was disconnect the vacuum line from the distributor... of coarse now days that ain't the case..... LOL.... anyway any help would be appreciated !!
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Old Jun 25, 2018 | 01:28 AM
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Default its a single pin connector.

i can show you a pic tomorrow
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Old Jun 25, 2018 | 01:34 AM
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Originally Posted by VikingTrad3r
i can show you a pic tomorrow
Yes that is what the one I was talking about.. A single pin that disconnects about 2 or 3 inches below the relay.. I appreciate your help and hope the picture explains all to me!!!!
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Old Jun 25, 2018 | 02:07 AM
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EST (Electronic Spark Timing) connector, L83 & L98 (my connector shell is broken):


Last edited by Hot Rod Roy; Jun 26, 2018 at 03:22 PM.
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Old Jun 25, 2018 | 07:27 AM
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Originally Posted by Hot Rod Roy
EST (Electronic Spark Timing) connector, L83 & L89:

Many Thanks !!!!!
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Old Jun 25, 2018 | 07:51 AM
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I wanted to let you know, I was wrong. I looked closer at the connector(that you identified) and it does NOT go to a relay, It goes back into another wiring harness below that relay... Thanks, Again!
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