Quote:
Originally Posted by mustang67408
Make sure the vacuum lines to the EGR MODULATOR are not plugged or dirty and clean the throttlebody where they attach and then replace the modulator, they always (99%) are bad.
There is also a MAP sensor that reads the engine data and may be improperly reading, make sure the vacuum line to it is clean an the filter it attaches to is allowing enough vacuum thru.
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Thanks for the info. I replaced the modulator and it fixed the problem. I wish I would have done the in the first place. Thanks for the help!