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> EGR, relation to lean?
post May 18, 2009 - 12:58 PM
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6gcnoob

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guys i keep failing the emissions test. im good on everything but my NOx. Ive been told time and time again that its my EGR or cat.

i am running two cats one on the stock mani and one new one down below. i got fed emissions.

i am also throwning a CEL # 25, lean air/fuel ratio. does the EGR have any relation to this code. if my VSV or temp sensor for the EGR failed wouldnt i be throwing a code for the EGR. i applied vacuum to the valve itself and the engine stumbled and died like it should. i cleaned the injectors and filter too but im still getting the code and failing.
 
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post May 26, 2009 - 7:55 PM
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6gcnoob

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is there a way to check the timing without a timing light. i do not have one, and if i did i am unsure how to hook it up. and when you say base timing do you mean distributor, ignition timing, or crank and cam timing? and how would that make it run lean

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