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How do you remove the ECM on a 1994 Ford E350?

1. Disconnect the negative battery cable.

2. Remove the air cleaner assembly.

3. Locate the ECM, which is mounted on the driver's side firewall, behind the brake master cylinder.

4. Disconnect the electrical connectors from the ECM.

5. Remove the four bolts that hold the ECM in place and remove the ECM.