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Wouldn't pass smog after tune up. Was running smooth. Mechanic tested the Egr and said it was bad. The miss didn't start untill after smog check,

2006-10-01 17:24:28 · 2 answers · asked by jemrx2 4 in Cars & Transportation Maintenance & Repairs

2 answers

Check for loose wires or damaged plugs. EGR will not cause a miss fire.

2006-10-01 17:29:59 · answer #1 · answered by Anonymous · 0 1

egr stuck on at idle will cause a rough running engine, try tapping lightly on the egr valve and see if it will free up, also temporarily disconnect the vacuum hose and see what happens.

2006-10-02 00:44:15 · answer #2 · answered by Magikmann 4 · 0 0

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