Sorry to beat this topic to death but unfortunately the EZL control is not adjusting/limiting the spark advance as it
had previously. It has no affect on timing
regardless of setting. The timing cannot be
adjusted manually because the ECU overrides
any manual adjustment. The Electrical
Troubleshooting Manual is not much help.
Can you offer any suggestions as to what to
check for the inoperative EZL control?
Ultimately I will install a cat if necessary
but it is frustrating when I am sure the car
is capable of running clean enough without
I really appreciate all of your time and effort!