question about egr test
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Drifting
Joined: Dec 2012
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From: Georgetown TX
question about egr test
1989, auto trans, stock, 50,000 miles
I have been working on a bad idle problem and seems to go away as rpm increses. I want to test the egr to see if it is leaking at idle and not fully seating.
My understanding is that at idle, I have no metered vacuum going to the egr valve, and thus should be fully seated in the closed position.
If I disconect vacuum line to egr at idle, and spray starter fluid into the vacuum line, the idle should rise if the egr is not fully seated, and do nothing if it is seated. Am I correct?
I have been working on a bad idle problem and seems to go away as rpm increses. I want to test the egr to see if it is leaking at idle and not fully seating.
My understanding is that at idle, I have no metered vacuum going to the egr valve, and thus should be fully seated in the closed position.
If I disconect vacuum line to egr at idle, and spray starter fluid into the vacuum line, the idle should rise if the egr is not fully seated, and do nothing if it is seated. Am I correct?
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