Jet Air Fuel Mixing System Operation Inspection: Notes
NOTE:
- When the hose and/or nozzle of the jet air fuel mixing system are clogging, the engine has rough-idle.
- Verify that the jet air fuel mixing system hose is connected properly, according to INTAKE-AIR SYSTEM VACUUM HOSE ROUTINE DIAGRAM. (See
INTAKE-AIR SYSTEM VACUUM HOSE ROUTING DIAGRAM [13B-MSP]
.)
- If the hose is not connected properly, connect the hose properly.
- Verify that there is no collapse, crack and divide in each intake-air system hoses.
- If there is collapse, crack or divide, repair or replace suspected part.
- Verify that there is no collapse, crack and divide between air hose and jet air fuel mixing pipe.
- If there is collapse, crack or divide, repair or replace suspected part.
- Perform the Intake Manifold Vacuum Inspection. (See
INTAKE MANIFOLD VACUUM INSPECTION )
- If there is malfunction, repair or replace suspected part, according to inspection results.
- Connect the M-MDS to DLC-2.
- Monitor following PIDs.
- MAF (MAF sensor)
- ETC_DSD (target throttle valve opening angle)
- Measure the air flow amount for jet air fuel mixing nozzle according to following "Nozzle air flow amount measurement procedure".
- If there is no air flow, remove the objection for following points;
- Jet air fuel mixing nozzle
- Hose between jet air fuel mixing nozzle and air hose
- If there is no air flow, remove the objection for following points;