LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Buick >> 1988 >> Regal Custom >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Ignition System - Direct >> Operation >> Reference Ground
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Reference Ground

The EST system is grounded through the DIS ignition module to ensure that the ground circuit does not have excessive amount of voltage drop between the ignition module and the ECM. An excessive voltage drop in the system could affect engine performance.