Codes p2196 and p2198 and p0401 and p0300 (all intermittently). I've cleaned the carbon out of the EGR valve. I've checked EGR pressure sensor feedback was working, hoses good, changed bank 2 sensors 1 and 2 and that cleared it for a bit now it's back, and the bank 1 sensor code is popping up and the exhaust gas recirculation is insufficient. I may or may not have a leak in the canister purge valve. IM readiness all passes except for catalyst, then all the codes will pop up again (typically after 50 miles, furthest has been 100 miles). Does not overheat, topped off coolant, changed oil and filter. Have not changed PCV valve, spark plugs or fuel injectors.
Oct 6, 2024 at 12:58 PM
