the bypass connector is located on the engine wire harness, next to the left valve cover (watching engine front) next to the air injection control valve.
your truck does not have a bypass connector
On a 1992 Cadillac 5.7, the electronic spark timing (EST) bypass connector is typically located near the ignition control module. It is a single wire connector that can be found on the harness leading to the module. To access it, look for a two-wire connector; the bypass is usually the single wire that can be grounded to bypass the EST for diagnostic purposes.
When it is disconnected it puts the electronic timing control module in limp mode,and then you can set the timing with a timing light.
That year does not have 1. The timing is computer controlled and you MUST have an engine scanner to set the timing on that engine. A timing light will not work.
That year did not have one because the timing is computer controlled and can be only adjusted with a Engine SCANNER.
0 degrees in drive bypass disconnected
electronic spark timing connector
disconnect the tan wire connector on the passenger side wiring harness , that puts it in bypass mode, unlock dist. bolt and adjust timing. when set reconnect wiring connector.
To set the timing on a 305 Chevy marine motor, first, ensure the engine is at operating temperature and turned off. Disconnect the timing connector to bypass the electronic control module, then use a timing light to check the timing mark on the harmonic balancer against the timing tab on the engine. Adjust the distributor by loosening the hold-down bolt and turning it until the timing light indicates the desired timing setting, typically around 8-12 degrees BTDC for a marine application. Finally, reconnect the timing connector and recheck the timing to ensure it remains accurate.
Greetings, A code 42 indicates that the electronic spark timing bypass circuit or the electronic spark timing circuit is either open or shorted. A malfunctioning HEI module can cause this.
In a 1991 Ford Aerostar with a 3.0L engine, the spout connector is typically located near the ignition module or the distributor. It is a two-wire connector that can usually be found on the passenger side of the engine compartment, close to the firewall. This connector is used for setting the ignition timing, allowing you to bypass the computer for manual timing adjustments.
On GM trucks, you need to look under the glove compartment for the wiring harness. look for a single wire with a brown tracer that has a black connector. This is the electronic timing connector. Start the truck, unplug connector, set the distributor timing at zero, tighten distributor, reconnect wire.