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Old 04-22-2003, 01:39 PM
Arthur Dalton Arthur Dalton is offline
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Join Date: Aug 1999
Location: Florida / N.H.
Posts: 8,784
A guess possible is a sticking egr .

The egr will shut closed when engine is coming back to an idle, but if it hangs up [sticks], the idle is very rough..
There was an egr replacement/upgraded part for this condition on 104s..
But, best to have codes run for true diagnosis, though.
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