the timing signal starts at the crank sensor. Hope this helps. Not sure what you are asking.
To set the timing on a 1984 Chevy Celebrity with the V6 engine: 1. Disconnect the HEI connector so the engine will run in closed loop. 2. Start the engine and use an inductive timing light to check the timing. It should be at 100 before top dead center 3. If the timing is off loosen the clamp at the base of the distributor and turn the distributor so that the timing is set. 4. When you have set the timing tighten the clamp and verify that the timing did not change. If it stayed the same reconnect the HEI connector.
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.
The timing on a 1987 Chevy Celebrity is controlled by the engine control module, there is no provision for adjustment.
Timing on a 1987 Celebrity is controlled by the engine control module, computer. There is no provision for adjustment.
On a 1989 Chevy Celebrity the timing is controlled by the engine control module, there is no specification or provision for adjusting the timing manually.
The timing on y our 1987 Chevy Celebrity is controlled by the engine computer, there is no way provided to adjust it.
Disconnect IAC valve- ACC valve sub harness connector.
separate a timing connector on the firewall in engine bay which allows you to time the engine,then adjust the distributor.The connector is on the drivers side below the cowl and when separated the engine will run differently.
The 1987 Chevy Celebrity has distributor less ignition. The timing is controlled by the engine control module and there is no provision for adjustment.
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.
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.
The 1988 Chevy Celebrity uses distributorless ignition. There is no provision to alter timing, the engine control module takes care of that.