Ford ES — VR21 REPLACEMENT
For the Ford ES.
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Before you start
- NOTE: FIELD
- NOTE: T h e 2500ohm external voltage a d j u s t potentio-
Procedure
- Stop engine.
- Disconnect and if necessary, label the following
- Remove four screws at corners.
- Remove used PC board.
- Install new PC board; secure with four screws.
- Reconnect wires removed in step 2 at the proper
- Place jumper W10 at proper terminals for your
- Perform Voltage Calibration and Stability Ad-
- 1 / 2 1
- 1/21
Specs & torque values
- NOTE: T h e 2500ohm external voltage a d j u s t potentio-
Source: manual:0900-0335_Service Manual Ford Engine Detector I1_198207.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.