P0304 MISFIRE ON CYLINDER 4 -I4 Turbo LTG (updated with pics)
hey guys I need some help here . I am getting code P0304 code which indicates that Cylinder 4 had too many misfires within a predetermined period of time. which also caused P0420 which means the Catalyst system had low efficiency in bank 1. The guys at autozone think its an issue with my catalytic converter or maybe an exhaust leak? Any help is appreciated.
MODS:
65MM throttle body
Hi-Flow catalytic converter
Full Borla S-Type exhaust
Stage 2 performance tune by RPM-Motorsports
Everything was installed around July and has been running fine since then.
Last edited by dizo702; 11-02-2017 at 03:55 PM.
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