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Gm scanner found code 43 on 86 s10 blazer referring to electronic spark timing ESC circuit - low voltage detected or control problems what and where is this how fix?

What is the ESC circuit?

The ESC (Electronic Spark Timing) circuit is responsible for controlling the timing of the spark plugs in your vehicle's engine. It does this by sending a signal to the ignition coil, which then sends a high-voltage spark to the spark plugs.

What causes code 43?

There are a few things that can cause code 43 to be set, including:

* A faulty ESC module

* A loose or damaged connection in the ESC circuit

* A problem with the ignition coil

* A problem with the spark plugs

How to fix code 43

To fix code 43, you will need to first identify the cause of the problem. Once you have identified the cause, you can then repair or replace the faulty component.

Here are some tips for fixing code 43:

* Check the connections in the ESC circuit for any loose or damaged wires.

* Test the ESC module to see if it is functioning properly.

* Replace the ignition coil if it is faulty.

* Replace the spark plugs if they are worn out or damaged.

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