L-Series Wagon 2WD F4-1781cc 1.8L SOHC (Carb) (1986)
Deceleration Valve: Testing and Inspection
Fig. 31 Anti-afterburn valve.
AIR HOSE
- Check that hose and connections are tight. Replace hose if leakage is found.
VACUUM LINE
Check vacuum line for leakage as follows:
- Disconnect vacuum hose from anti-afterburn valve and start engine.
- Check that air is drawn into vacuum hose. If not, hose is defective.
ANTI-AFTERBURNING VALVE
- Hold piece of paper under valve and increase engine speed to 3000 RPM. Release throttle quickly. Paper should be drawn against valve if valve is
operating correctly. If not, valve is defective and should be replaced.