Originally posted by tigertamer: Check engine light came on, yes again, and now a P0420 F code is coming up. Does anyone know what this problem is or has anyone else had this problem?
Here:
P0420 Catalyst System Efficiency below Limit - Bank No 1.
T-red E0 SVT
ATS 17x7.5 Comp Lites, 215/45/17 Falken 512s, Ausi Bar, Boxed subframe, Poli all around, Warmonger's Opt Y, Opt TB, AFE, DMD, NGK's, Bendix Ti, Alpine, Polk, Mobil-1 0W-40, Redline MTL.
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