Time Delay Test
NOTE:
On some vehicles, timing module and solenoid valve serve a dual function of controlling both EGR delay and idle enrichment duration.
- With ignition switch off, remove wiring connector from time delay solenoid valve. Place a test light across connector terminals.
- Start engine. Test light should come on, and stay on for approximately 60 seconds after engine starts. If light does not come on, or stays on indefinitely, replace timer.NOTE: Test light current should not exceed 0.5 amps. or damage to timer may occur.