Hi folks
After replacing EZL on my 1991 500SL, I am trying to hunt down the high idle in P or N when engine has reached operating temp.
Checked throttle switch - continuity & resistance seem good
Checked for vacuum leaks. All hoses & connectors in very good order. No change in idle when spraying everywhere with carb cleaner
I pulled the connector to ICV (when engine warmed up at 80C). The idle becomes jerky but rpm stay roughly the same, maybe slightly higher
Ignition on duty cycle check -...
Interpreting duty cycle reading
After replacing EZL on my 1991 500SL, I am trying to hunt down the high idle in P or N when engine has reached operating temp.
Checked throttle switch - continuity & resistance seem good
Checked for vacuum leaks. All hoses & connectors in very good order. No change in idle when spraying everywhere with carb cleaner
I pulled the connector to ICV (when engine warmed up at 80C). The idle becomes jerky but rpm stay roughly the same, maybe slightly higher
Ignition on duty cycle check -...
Interpreting duty cycle reading
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