Anti-diesel valve

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Starting with 1973 USA models, the anti-dieseling valve was added. This is an idle-circuit cutoff solenoid. As soon as the key is turned off, the engine dies.

Overview

Anti-Diesel solenoid valve comes on some 1973 and newer carbs.

Wiring

• Yellow wire - fuel cut solenoid To general IG circuit (hot when key is Run or Start)

Troubleshooting

• Turn the key to IGN, engine OFF. Then unplug the connector at the valve (under the engine). Does the Anti-disel valve have 12V at the wiring connector?

  

  test to see if you have power at the plug that the solenoid connects to

No: Check your fuses...trace the wires and see why it's not getting power

Yes: Have someone turn the ignition on & off while you listen carefully to hear the 'click' as it is turned on.

• No click? Bypass the valve (as below). If this allows the engine to idle correctly, then repair the wiring or replace the solenoid with a working one.

Bypassing the Anti-Diesel Valve

Unscrew the solenoid from the carburetor and take out the 'pin' in the middle. Then re-install the solenoid. Start engine to see if all is well.

It will no longer 'cut' the engine immediately, but otherwise the engine will run well with this pin removed.

Part Numbers

• 16916-H7010 ASSY-CUT,FUEL 0772-1072 [USA B110 DCH306-4/DCH306-5]
• 16916-H7011 VALVE-ANTI DIESELING SOLENOID 1172- [USA B110 ]
• 16916-H5002 VALVE-anti-dieseling solenoid [JDM B210 DCH306-2]

Aftermarket Anti-Diesel valve

• TOMCO 8134 $36
  • Chevy Luv Truck 1975-1980
  • Ford Courier Truck 1979-1980
  • Honda 1973-1976
  • Mazda 1975-1978
  • Datsun 1973-1983
  • Subaru 1974-1980