Examination
Switch off the ignition.
Disconnect the plug from the control relay.
Use an ohmmeter to check the resistance between terminals 12 and 9. Resistance is about 4 ohms.
Disconnect plugs from injection valves.
Check valve resistance. Resistance is about 15-19 ohms.
Attach all plugs in place.
Removing
Disconnect the ground cable from the battery.
Disconnect the fuel lines from the distribution line and remove the line. Plug the distribution line and hoses, collect leaked fuel with a rag.
Disconnect the plug from the valve.
Unscrew the two screws and carefully pull out the valve. Care must be taken to remove the valves carefully so as not to damage the needles of the jets.
Installation
Install and secure the valves with new, rubber o-rings.
Attach plugs.
Attach hoses to distribution line.
Attach battery.
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