Throttle Body Nozzle – 0.65 GPH (31606N)


Throttle body nozzle attaches to Affinity EG Flexible Throttle Body Arm (31600FA) to allow exact positioning during gasoline fuel induction services.  The 0.65 GPH nozzle is recommended for smaller displacement gasoline engines or engines with restricted flow induction design.

Throttle Body Nozzle for:
Fuel Service Tool
(FST16 and FST24 #31606N)

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SKU: 31606N Category: Tags: , ,
SKU: 31606N Category: Tags: , ,
Features of Throttle Body Nozzle – 0.65 GPH (31606N):
  • Designed to interchange with multiple nozzle options for the Flexible Throttle Body Arm
  • Rectus male connector machined in the body
  • Spray nozzle tips can be removed for cleaning or replacement

Flexible Throttle Body Nozzle Tool Sets:
31606B – 0.65 GPH Nozzle
31608B – 0.85 GPH Nozzle (Standard)

Nozzles Only:
31606N – 0.65 GPH Nozzle – THIS PRODUCT
31608N – 0.85 GPH Nozzle (Standard)

Flexible Throttle Body ‘S’ Tool Sets:
31606S – 0.65 GPH Nozzle
31608S – 0.85 GPH Nozzle (Standard)

Induction ‘S’ Tool Only:
31606A – 0.65 GPH Nozzle
31608A – 0.85 GPH Nozzle (Standard)

Additional information

Weight 0.2 lbs
Service Instructions


① Depressurize tool before removing fill cap. Fill with injection cleaner.

② Attached required fuel injection adapter to vehicle and service tool. Disengage vehicle fuel pump.

③ Set tool pressure required for engine. Open service hose valve and start engine. Run all cleaner until engine stops.

④ Remove tool & fuel injection adapter. Re-engage fuel pump.


① Depressurize tool before removing fill cap. Fill with injection cleaner.

② Attach “S” Tool or Flex Nozzle Tool for induction service.

③ Close service hose valve and set tool pressure to 60 psi.

④ Install “S” tool in fresh air tube at throttle plate, or set Flex Nozzle Tool from throttle plate with fresh air tube removed (disconnect MAF sensor).

⑤ Run service on warm engine at 1200 RPM. Blow out 3-4 times during service to strip soot/carbon and clear induction system.

⑥ After service, run 10 min. then drive briskly to clear induction system.

⑦ Reconnect MAF sensor and clear any engine codes.


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