Trying to get a 89' 240 on the road in California is a real pain.
It passes all the actual emissions tests with flying colors, even the NOx test. But the smog shop failed me due to the EGR valve not receiving vacuum.I manually pulled vacuum to the inlet hose of the valve while the engine was idling and it ran rough and nearly died so the valve itself is fine. I also ran the EGR solenoid self test through the OBD system and heard the solenoid (old style) clicking softly, so I am pretty sure it works too.
There is vacuum flowing to the solenoid input.
Is there any way to force the solenoid to actuate while the engine is running so I can test that further, or any other ideas on what it could be?
Thanks