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EGR valve question 700 1990

posted by  745 TurboGreasel on  Wed Oct 29 20:52 CST 2003
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Retard your ignition timing 3 degrees from spec. If you failed at idle, raise idle speed to about 950RPM.

Before you go in for a test, driver for half an hour so the engine is good and hot, leave it running while you wait.
Be sure to go to a pass or no pay station, the don't stand to make money by failing you.

If you still fail, post the measured emissions readings for high and low speed tests.

It is interesting to know that a brand new (read $50 generic) Catalytic convertor will make most any car pass for the first half hour of its life.





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