Help with some CEL codes...

C.Hermsen

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Appleton, WI
2004 SRT10 with Belanger header back exhaust w/ high flow cats, Roe racing VEC3, and a built motor. Yesterday I got code P0175 and I suspected a faulty 02 sensor so I switched out both upstream 02 sensors, and now I am getting 2 codes P0172 and P0175, which is fuel system too rich both banks. Both my downstream 02 sensors are replaced with 02 simulators from Partsrack.


Where should I go next? Car appears to be running fine other than the obvious raw fuel smell at start up.

Thanks guys.
 

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