Ignition Timing
Thread Starter
Racer
Joined: Oct 2006
Posts: 354
Likes: 0
From: Stilwell OK.
Ignition Timing
Quick question, I'm going to check my timing tomorrow, if I have to make adjustments, I know you have to put the system in bypass. Can anyone tell me how to put in bypass ? Oh by the way it's a 1989 coupe. 
Burning Brakes
Joined: Oct 2006
Posts: 778
Likes: 0
From: Fort Worth Texas
should be a connector to the right of the distributor (possibly taped to a harness) with a tan/black stripe wire on one side and a pink (I think) wire out of the other side. this is the one to disconnect. I just finished washing my hands from doing the same thing (mine included wires,plugs, cap..........etc, etc, etc........). Good luck with it.
Also, once you are done and get it connected back together.......you will have a code to be cleared.
Also, once you are done and get it connected back together.......you will have a code to be cleared.
Team Owner
Joined: Jan 2003
Posts: 20,290
Likes: 239
From: Summerland B.C. Canada
My EST bypass connector is beside my brake booster. Just unplug it to check and adjust timing. When finished, plug it back together and remove neg battery cable for a few seconds, to clear the code.
Race Director
Joined: Jun 1999
Posts: 14,924
Likes: 9
From: Merritt Ils Fl
Not to flog a dead horse, but Greg and Agent86 are both correct. Disconnect is between the booster and the distributor. There should be a similar connector on the other side of the booster that when disconnected will clear codes.
Burning Brakes
Joined: Oct 2006
Posts: 778
Likes: 0
From: Fort Worth Texas
Hey Muffin......
Know what the color of the wires on that connector are?
I assume this should be done with key turned off/out of ignition?
How long should it be disconnected?
I would rather do it this way than lose the radio presets.
Good info for all!
Know what the color of the wires on that connector are?
I assume this should be done with key turned off/out of ignition?
How long should it be disconnected?
I would rather do it this way than lose the radio presets.
Good info for all!
Le Mans Master
Joined: Jul 2002
Posts: 5,818
Likes: 2
From: Alive and well in Burlington NC
Frm the Tech Tips section:
https://www.corvetteforum.com/techti...=276&TopicID=5
Kind of long, but worth it.
https://www.corvetteforum.com/techti...=276&TopicID=5
Kind of long, but worth it.
Safety Car
Joined: Jul 2004
Posts: 3,835
Likes: 30
