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Alright, so my 2004 Ion Redline has had the eternal check engine light, P0172 (Runs to rich I believe). After being hooked up to the advanced scanner, my mechanic said that it is beyond his ability to fix. He said it was throwing a reading of 3000 rpm when it was at idle.. so I don't know what to do. I was told to take it to the dealership. Any ideas on what I can do to fix this? The car is on a second engine and I think the previous owner never married the edu or something. Any help would be greatly appreciated!

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For starts clean the maf and throtle body. Make sure you use maf cleaner anything else will ruin the maf. Alittle dielectric on the plugs is good too.
 
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