Welding On Car Ecu. The most important aspect of TIG welding on a modern car is protecting the cars ECM and digital electronics which can otherwise be damaged by the high frequency generated during the TIG welders initial voltage spike while starting an arc. Ive welded on many different cars MIG and TIG and never had a dead ecu.
We routinely weld on new vehicles trucks from 12 ton to tandem and 6WD plows all with electronics to control the engine as well as electronics to control the saltplow gear without disconnecting the battery. Swapped ecu with another buggy and all was good and the other buggy had same issues he was having. Attaching the ground close to the welding operation is best practice.
Welding the body is the same it is often isolated from the frame and engine.
By having the earth lead as close as possible to the welding will minimize the potential difference and disconnecting the ECU as well as the earth will isolate the sensitive equipment and not allow a path for the static to travel. Login or Sign Up Logging in. We routinely weld on new vehicles trucks from 12 ton to tandem and 6WD plows all with electronics to control the engine as well as electronics to control the saltplow gear without disconnecting the battery. Ive welded on many different cars MIG and TIG and never had a dead ecu.