Code 43 on a 94LT1
Thread Starter
Racer
Joined: Jul 2007
Posts: 313
Likes: 0
From: Laurel MS
Code 43 on a 94LT1
Replaced RH knock sensor.....no chg in driveability. Still bucking except under accelleration. CEL will come one and extinguishes. Taking a look @ the Opti Spark. Got an MSD in the box. Any suggestions????
Pro
Joined: Dec 2008
Posts: 658
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From: Lubbock for now, headed for Oklahoma
Be sure you run through this as well. Codes identify a trouble circuit, not a trouble component.
Keep us updated!
Le Mans Master
Joined: Dec 2004
Posts: 5,789
Likes: 8
From: Myrtle Beach SC
St. Jude Donor '05-'06
You need to take a close look at the wiring and connectors at the sensor and at the opti, ICM, and coil. If it does this at idle it would make it easy for a wiggle test. just start shaking wires and looms until you can recreate the issue.
Be sure you run through this as well. Codes identify a trouble circuit, not a trouble component.
Keep us updated!
Be sure you run through this as well. Codes identify a trouble circuit, not a trouble component.
Keep us updated!
Don't forget there are 2 KS to check. I am having this issue on cold mornings and goes away after a few minutes when it warms up.
Pro
Joined: Dec 2008
Posts: 658
Likes: 0
From: Lubbock for now, headed for Oklahoma
Don't forget there is a specified torque on knock sensors. DO NOT put any kind of sealer or tape around them either. I can get you the torque spec. if you need it.
